2 (* ======================================================================== *)
4 g (mk_imp(tsk_hyp_new,`TSKAJXY_statement`));;
6 e (REWRITE_TAC[TSKAJXY_statement; mcell_set; IN_ELIM_THM]);;
9 e (ASM_CASES_TAC `NULLSET X`);;
10 e (REWRITE_TAC[gammaX]);;
11 e (MATCH_MP_TAC (REAL_ARITH `x = &0 /\ y = &0 /\ z = &0 ==> x - y + z >= &0`));;
12 e (REWRITE_TAC[total_solid; REAL_ENTIRE]);;
13 e (REPEAT STRIP_TAC);;
14 e (MATCH_MP_TAC MEASURE_EQ_0);;
15 e (ASM_REWRITE_TAC[]);;
17 e (REWRITE_WITH `VX V X = {}`);;
19 e (ASM_REWRITE_TAC[]);;
20 e (REWRITE_TAC[SUM_CLAUSES]);;
22 e (REWRITE_WITH `edgeX V X = {}`);;
23 e (REWRITE_TAC[edgeX]);;
24 e (REWRITE_WITH `VX V X = {}`);;
26 e (ASM_REWRITE_TAC[]);;
27 e (ONCE_REWRITE_TAC[MESON[IN] `{} x <=> x IN {}`]);;
29 e (REWRITE_TAC[SUM_CLAUSES]);;
32 e (NEW_GOAL `~(X:real^3->bool = {})`);;
33 e (STRIP_TAC THEN SWITCH_TAC THEN UP_ASM_TAC THEN
34 REWRITE_TAC[ASSUME `X:real^3->bool = {}`; NEGLIGIBLE_EMPTY]);;
36 (* ========================================================================= *)
38 e (ASM_CASES_TAC `i >= 4`);;
39 e (NEW_GOAL `X = mcell4 V ul`);;
40 e (ASM_REWRITE_TAC[]);;
41 e (ASM_SIMP_TAC[MCELL_EXPLICIT]);;
42 e (UP_ASM_TAC THEN REWRITE_TAC[mcell4]);;
44 e (NEW_GOAL `?u0 u1 u2 u3. ul = [u0; u1; u2; u3:real^3]`);;
45 e (MATCH_MP_TAC BARV_3_EXPLICIT);;
46 e (EXISTS_TAC `V:real^3->bool` THEN ASM_REWRITE_TAC[]);;
47 e (UP_ASM_TAC THEN STRIP_TAC);;
48 e (REWRITE_TAC[ASSUME `ul = [u0; u1; u2; u3:real^3]`; set_of_list]);;
50 e (ABBREV_TAC `y1 = dist (u0:real^3, u1)`);;
51 e (ABBREV_TAC `y2 = dist (u0:real^3, u2)`);;
52 e (ABBREV_TAC `y3 = dist (u0:real^3, u3)`);;
53 e (ABBREV_TAC `y4 = dist (u2:real^3, u3)`);;
54 e (ABBREV_TAC `y5 = dist (u1:real^3, u3)`);;
55 e (ABBREV_TAC `y6 = dist (u1:real^3, u2)`);;
57 e (NEW_GOAL `VX V X = {u0,u1,u2,u3}`);;
58 e (REWRITE_WITH `VX V X = V INTER X`);;
59 e (MATCH_MP_TAC Hdtfnfz.HDTFNFZ);;
60 e (EXISTS_TAC `ul:(real^3)list` THEN EXISTS_TAC `i:num`);;
61 e (ASM_REWRITE_TAC[]);;
63 e (REWRITE_WITH `X = mcell 4 V ul`);;
64 e (ASM_REWRITE_TAC[]);;
65 e (MESON_TAC[ARITH_RULE `4 >= 4`; ASSUME `i >= 4`; MCELL_EXPLICIT]);;
68 `V INTER mcell 4 V ul = set_of_list (truncate_simplex (4 - 1) ul)`);;
69 e (MATCH_MP_TAC Lepjbdj.LEPJBDJ);;
70 e (ASM_REWRITE_TAC[ARITH_RULE `1 <= 4 /\ 4 <= 4`]);;
71 e (REWRITE_WITH ` mcell 4 V [u0; u1; u2; u3] = X`);;
72 e (ASM_REWRITE_TAC[]);;
73 e (MESON_TAC[ARITH_RULE `4 >= 4`; ASSUME `i >= 4`; MCELL_EXPLICIT]);;
74 e (ASM_REWRITE_TAC[]);;
75 e (ASM_REWRITE_TAC[ARITH_RULE `4 - 1 = 3`; TRUNCATE_SIMPLEX_EXPLICIT_3;
78 e (REWRITE_WITH `vol X = vol_y y1 y2 y3 y4 y5 y6 /\
79 gammaX V X lmfun = gamma4fgcy y1 y2 y3 y4 y5 y6 lmfun`);;
80 e (MATCH_MP_TAC gammaX_gamm4fgcy);;
81 e (EXISTS_TAC `ul:(real^3)list`);;
82 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u1:real^3`);;
83 e (EXISTS_TAC `u2:real^3` THEN EXISTS_TAC `u3:real^3`);;
84 e (EXISTS_TAC `i:num`);;
85 e (ASM_REWRITE_TAC[]);;
87 (* ========================================================================= *)
92 [#2.0,y1,sqrt8; #2.0,y2,sqrt8; #2.0,y3,sqrt8; #2.0,y4,sqrt8;
96 (~critical_edge_y y1 /\
97 ~critical_edge_y y2 /\
98 ~critical_edge_y y3 /\
99 ~critical_edge_y y4 /\
100 ~critical_edge_y y5 /\
101 ~critical_edge_y y6 /\
102 &0 < delta_y y1 y2 y3 y4 y5 y6 /\
103 rad2_y y1 y2 y3 y4 y5 y6 < &2
104 ==> gamma4fgcy y1 y2 y3 y4 y5 y6 lmfun >= &0)`);;
105 e (MATCH_MP_TAC TSKAJXY_DERIVED4);;
106 e (ASM_REWRITE_TAC[]);;
107 e (UP_ASM_TAC THEN REWRITE_TAC[ineq; MESON[] `a ==> b ==> c <=> (a /\ b) ==> c`]
109 e (FIRST_ASSUM MATCH_MP_TAC);;
110 e (ASM_REWRITE_TAC[]);;
112 e (NEW_GOAL `~(critical_edge_y y1) /\
113 ~(critical_edge_y y2) /\
114 ~(critical_edge_y y3) /\
115 ~(critical_edge_y y4) /\
116 ~(critical_edge_y y5) /\
117 ~(critical_edge_y y6) /\
118 &0 < delta_y y1 y2 y3 y4 y5 y6`);;
119 e (REWRITE_TAC[critical_edge_y]);;
120 e (REPEAT STRIP_TAC);;
121 e (NEW_GOAL `{u0:real^3, u1} IN critical_edgeX V X`);;
122 e (REWRITE_TAC[critical_edgeX; IN; IN_ELIM_THM]);;
123 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u1:real^3`);;
124 e (REWRITE_TAC[HL_2; edgeX; IN_ELIM_THM]);;
125 e (REPEAT STRIP_TAC);;
126 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u1:real^3`);;
127 e (ASM_REWRITE_TAC[]);;
129 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
131 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
132 e (STRIP_TAC THEN UNDISCH_TAC `&2 * hminus <= y1`);;
133 e (EXPAND_TAC "y1" THEN REWRITE_TAC[dist; ASSUME `u0:real^3 = u1`;
134 NORM_ARITH `norm (u1 - u1) = &0`; REAL_ARITH `~(&2 * s <= &0) <=> &0 < s`]);;
135 e (MP_TAC Nonlinear_lemma.hminus_prop THEN REAL_ARITH_TAC);;
137 e (ASM_REAL_ARITH_TAC);;
138 e (ASM_REAL_ARITH_TAC);;
141 e (NEW_GOAL `{u0:real^3, u2} IN critical_edgeX V X`);;
142 e (REWRITE_TAC[critical_edgeX; IN; IN_ELIM_THM]);;
143 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u2:real^3`);;
144 e (REWRITE_TAC[HL_2; edgeX; IN_ELIM_THM]);;
145 e (REPEAT STRIP_TAC);;
146 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u2:real^3`);;
147 e (ASM_REWRITE_TAC[]);;
149 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
151 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
152 e (STRIP_TAC THEN UNDISCH_TAC `&2 * hminus <= y2`);;
153 e (EXPAND_TAC "y2" THEN REWRITE_TAC[dist; ASSUME `u0:real^3 = u2`;
154 NORM_ARITH `norm (u2 - u2) = &0`; REAL_ARITH `~(&2 * s <= &0) <=> &0 < s`]);;
155 e (MP_TAC Nonlinear_lemma.hminus_prop THEN REAL_ARITH_TAC);;
156 e (ASM_REAL_ARITH_TAC);;
157 e (ASM_REAL_ARITH_TAC);;
160 e (NEW_GOAL `{u0:real^3, u3} IN critical_edgeX V X`);;
161 e (REWRITE_TAC[critical_edgeX; IN; IN_ELIM_THM]);;
162 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u3:real^3`);;
163 e (REWRITE_TAC[HL_2; edgeX; IN_ELIM_THM]);;
164 e (REPEAT STRIP_TAC);;
165 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u3:real^3`);;
166 e (ASM_REWRITE_TAC[]);;
168 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
170 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
171 e (STRIP_TAC THEN UNDISCH_TAC `&2 * hminus <= y3`);;
172 e (EXPAND_TAC "y3" THEN REWRITE_TAC[dist; ASSUME `u0:real^3 = u3`;
173 NORM_ARITH `norm (u3 - u3) = &0`; REAL_ARITH `~(&2 * s <= &0) <=> &0 < s`]);;
174 e (MP_TAC Nonlinear_lemma.hminus_prop THEN REAL_ARITH_TAC);;
175 e (ASM_REAL_ARITH_TAC);;
176 e (ASM_REAL_ARITH_TAC);;
179 e (NEW_GOAL `{u2:real^3, u3} IN critical_edgeX V X`);;
180 e (REWRITE_TAC[critical_edgeX; IN; IN_ELIM_THM]);;
181 e (EXISTS_TAC `u2:real^3` THEN EXISTS_TAC `u3:real^3`);;
182 e (REWRITE_TAC[HL_2; edgeX; IN_ELIM_THM]);;
183 e (REPEAT STRIP_TAC);;
184 e (EXISTS_TAC `u2:real^3` THEN EXISTS_TAC `u3:real^3`);;
185 e (ASM_REWRITE_TAC[]);;
187 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
189 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
190 e (STRIP_TAC THEN UNDISCH_TAC `&2 * hminus <= y4`);;
191 e (EXPAND_TAC "y4" THEN REWRITE_TAC[dist; ASSUME `u2:real^3 = u3`;
192 NORM_ARITH `norm (u3 - u3) = &0`; REAL_ARITH `~(&2 * s <= &0) <=> &0 < s`]);;
193 e (MP_TAC Nonlinear_lemma.hminus_prop THEN REAL_ARITH_TAC);;
194 e (ASM_REAL_ARITH_TAC);;
195 e (ASM_REAL_ARITH_TAC);;
198 e (NEW_GOAL `{u1:real^3, u3} IN critical_edgeX V X`);;
199 e (REWRITE_TAC[critical_edgeX; IN; IN_ELIM_THM]);;
200 e (EXISTS_TAC `u1:real^3` THEN EXISTS_TAC `u3:real^3`);;
201 e (REWRITE_TAC[HL_2; edgeX; IN_ELIM_THM]);;
202 e (REPEAT STRIP_TAC);;
203 e (EXISTS_TAC `u1:real^3` THEN EXISTS_TAC `u3:real^3`);;
204 e (ASM_REWRITE_TAC[]);;
206 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
208 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
209 e (STRIP_TAC THEN UNDISCH_TAC `&2 * hminus <= y5`);;
210 e (EXPAND_TAC "y5" THEN REWRITE_TAC[dist; ASSUME `u1:real^3 = u3`;
211 NORM_ARITH `norm (u3 - u3) = &0`; REAL_ARITH `~(&2 * s <= &0) <=> &0 < s`]);;
212 e (MP_TAC Nonlinear_lemma.hminus_prop THEN REAL_ARITH_TAC);;
213 e (ASM_REAL_ARITH_TAC);;
214 e (ASM_REAL_ARITH_TAC);;
217 e (NEW_GOAL `{u1:real^3, u2} IN critical_edgeX V X`);;
218 e (REWRITE_TAC[critical_edgeX; IN; IN_ELIM_THM]);;
219 e (EXISTS_TAC `u1:real^3` THEN EXISTS_TAC `u2:real^3`);;
220 e (REWRITE_TAC[HL_2; edgeX; IN_ELIM_THM]);;
221 e (REPEAT STRIP_TAC);;
222 e (EXISTS_TAC `u1:real^3` THEN EXISTS_TAC `u2:real^3`);;
223 e (ASM_REWRITE_TAC[]);;
225 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
227 e (ONCE_REWRITE_TAC[MESON[IN] `s t <=> t IN s`] THEN SET_TAC[]);;
228 e (STRIP_TAC THEN UNDISCH_TAC `&2 * hminus <= y6`);;
229 e (EXPAND_TAC "y6" THEN REWRITE_TAC[dist; ASSUME `u1:real^3 = u2`;
230 NORM_ARITH `norm (u2 - u2) = &0`; REAL_ARITH `~(&2 * s <= &0) <=> &0 < s`]);;
231 e (MP_TAC Nonlinear_lemma.hminus_prop THEN REAL_ARITH_TAC);;
232 e (ASM_REAL_ARITH_TAC);;
233 e (ASM_REAL_ARITH_TAC);;
236 e (REWRITE_WITH `&0 < delta_y y1 y2 y3 y4 y5 y6 <=>
237 &0 < sqrt (delta_y y1 y2 y3 y4 y5 y6)`);;
238 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
239 e (MATCH_MP_TAC SQRT_LT_0);;
240 e (REWRITE_TAC[delta_y]);;
241 e (ABBREV_TAC `x1 = y1 * y1` THEN ABBREV_TAC `x2 = y2 * y2`);;
242 e (ABBREV_TAC `x3 = y3 * y3` THEN ABBREV_TAC `x4 = y4 * y4`);;
243 e (ABBREV_TAC `x5 = y5 * y5` THEN ABBREV_TAC `x6 = y6 * y6`);;
244 e (REWRITE_WITH `delta_x x1 x2 x3 x4 x5 x6 =
245 (let a = u1:real^3 - u0 in
249 (a$1 * b$2 * c$3 - a$1 * b$3 * c$2 - a$2 * b$1 * c$3 +
251 a$3 * b$1 * c$2 - a$3 * b$2 * c$1) pow
253 e (MATCH_MP_TAC Delta_x.COMPUTE_DELTA_X);;
254 e (REWRITE_TAC[xlist; ylist]);;
256 e (EXPAND_TAC "x1" THEN EXPAND_TAC "x2" THEN EXPAND_TAC "x3");;
257 e (EXPAND_TAC "x4" THEN EXPAND_TAC "x5" THEN EXPAND_TAC "x6");;
258 e (UP_ASM_TAC THEN REWRITE_TAC[PAIR_EQ; GSYM REAL_POW_2]);;
259 e (ASM_REWRITE_TAC[]);;
261 e (ASM_REWRITE_TAC[]);;
263 e (REWRITE_TAC[REAL_ARITH `&0 <= &4 * a <=> &0 <= a`]);;
264 e (REWRITE_TAC[Real_ext.REAL_LE_POW_2]);;
265 e (ONCE_REWRITE_TAC[REAL_ARITH `&0 < a <=> &0 < a / &12`]);;
266 e (REWRITE_WITH `sqrt (delta_y y1 y2 y3 y4 y5 y6) / &12 =
267 vol (convex hull {u0,u1,u2,u3})`);;
268 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
269 e (REWRITE_TAC[delta_y; GSYM REAL_POW_2]);;
270 e (EXPAND_TAC "y1" THEN EXPAND_TAC "y2" THEN EXPAND_TAC "y3");;
271 e (EXPAND_TAC "y4" THEN EXPAND_TAC "y5" THEN EXPAND_TAC "y6");;
272 e (REWRITE_TAC[VOLUME_OF_CLOSED_TETRAHEDRON]);;
273 e (REWRITE_TAC[GSYM (ASSUME `X = convex hull {u0, u1, u2, u3:real^3}`)]);;
274 e (REWRITE_WITH `&0 < vol X <=> ~NULLSET X`);;
275 e (MATCH_MP_TAC MEASURABLE_MEASURE_POS_LT);;
276 e (REWRITE_TAC[ASSUME `X = convex hull {u0, u1, u2, u3:real^3}`]);;
278 e (MATCH_MP_TAC MEASURABLE_CONVEX_HULL);;
279 e (MATCH_MP_TAC FINITE_IMP_BOUNDED);;
280 e (REWRITE_TAC[Geomdetail.FINITE6]);;
281 e (ASM_REWRITE_TAC[]);;
283 e (ASM_REWRITE_TAC[]);;
285 e (NEW_GOAL `!u v. {u,v} IN edgeX V X ==>
286 (#2.0 <= dist (u,v) /\ dist(u,v) <= sqrt8)`);;
289 e (REWRITE_TAC[edgeX; IN]);;
290 e (REWRITE_TAC[MESON[IN] `VX V X x <=> x IN VX V X`]);;
291 e (ASM_REWRITE_TAC[IN_ELIM_THM]);;
293 e (MP_TAC (ASSUME `packing V`));;
294 e (REWRITE_TAC[packing; REAL_ARITH `#2.0 = &2`] THEN STRIP_TAC);;
296 e (FIRST_ASSUM MATCH_MP_TAC);;
297 e (NEW_GOAL `u:real^3 IN {u0,u1,u2,u3} /\ v IN {u0,u1,u2,u3}`);;
298 e (DEL_TAC THEN UP_ASM_TAC THEN DEL_TAC THEN UP_ASM_TAC THEN UP_ASM_TAC);;
300 e (NEW_GOAL `{u0,u1,u2,u3:real^3} SUBSET V`);;
301 e (REWRITE_TAC[GSYM set_of_list; GSYM (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
302 e (MATCH_MP_TAC BARV_SUBSET);;
303 e (EXISTS_TAC `3` THEN ASM_REWRITE_TAC[]);;
305 e (REWRITE_TAC[MESON[IN] `(V:real^3->bool) x <=> x IN V`]);;
306 e (UP_ASM_TAC THEN UP_ASM_TAC THEN SET_TAC[]);;
308 e (REWRITE_TAC[MESON[IN] `(V:real^3->bool) x <=> x IN V`]);;
309 e (UP_ASM_TAC THEN UP_ASM_TAC THEN SET_TAC[]);;
310 e (DEL_TAC THEN DEL_TAC THEN DEL_TAC THEN UP_ASM_TAC THEN UP_ASM_TAC);;
313 (* ------------------------------------------------------------------------ *)
315 e (ABBREV_TAC `s = circumcenter {u0,u1,u2,u3:real^3}`);;
316 e (NEW_GOAL `dist (u,v:real^3) <= dist (s,u) + dist (s, v)`);;
318 e (NEW_GOAL `!w. w IN {u0,u1,u2,u3:real^3} ==>
319 radV {u0,u1,u2,u3:real^3} = dist (circumcenter {u0,u1,u2,u3:real^3},w)`);;
320 e (MATCH_MP_TAC Rogers.OAPVION2);;
321 e (REWRITE_TAC[GSYM set_of_list; GSYM (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
322 e (MATCH_MP_TAC Rogers.BARV_AFFINE_INDEPENDENT);;
323 e (EXISTS_TAC `V:real^3->bool` THEN EXISTS_TAC `3` THEN ASM_REWRITE_TAC[]);;
325 e (NEW_GOAL `dist (s,u) + dist (s,v:real^3) <= sqrt8`);;
326 e (REWRITE_TAC[Nonlinear_lemma.sqrt8_sqrt2; sqrt2]);;
327 e (MATCH_MP_TAC (REAL_ARITH `a < x /\ b < x ==> a + b <= &2 * x`));;
330 e (REWRITE_WITH `dist (s,u:real^3) = radV {u0,u1,u2,u3:real^3}`);;
331 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
333 e (FIRST_ASSUM MATCH_MP_TAC);;
334 e (DEL_TAC THEN DEL_TAC THEN DEL_TAC THEN DEL_TAC);;
335 e (UP_ASM_TAC THEN UP_ASM_TAC THEN UP_ASM_TAC THEN UP_ASM_TAC);;
338 e (REWRITE_TAC[GSYM set_of_list; GSYM (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
339 e (REWRITE_TAC[GSYM HL]);;
340 e (ASM_REWRITE_TAC[]);;
342 e (REWRITE_WITH `dist (s,v:real^3) = radV {u0,u1,u2,u3:real^3}`);;
343 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
345 e (FIRST_ASSUM MATCH_MP_TAC);;
346 e (DEL_TAC THEN DEL_TAC THEN DEL_TAC THEN DEL_TAC);;
347 e (UP_ASM_TAC THEN UP_ASM_TAC THEN UP_ASM_TAC THEN UP_ASM_TAC);;
350 e (REWRITE_TAC[GSYM set_of_list; GSYM (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
351 e (REWRITE_TAC[GSYM HL]);;
352 e (ASM_REWRITE_TAC[]);;
353 e (ASM_REAL_ARITH_TAC);;
355 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} = 4`);;
356 e (REWRITE_TAC[ARITH_RULE `4 = 3 + 1`; GSYM set_of_list;
357 GSYM (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
358 e (MATCH_MP_TAC Marchal_cells_3.BARV_CARD_LEMMA);;
359 e (EXISTS_TAC `V:real^3->bool` THEN ASM_REWRITE_TAC[]);;
360 e (NEW_GOAL `~(u0 = u1:real^3) /\ ~(u0 = u2) /\ ~(u0 = u3) /\
361 ~(u1 = u2) /\ ~(u1 = u3) /\ ~(u2 = u3)`);;
362 e (REPEAT STRIP_TAC);;
363 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
364 e (REWRITE_TAC[ASSUME `u0 = u1:real^3`;
365 SET_RULE `{u1, u1, u2, u3} = {u1,u2,u3}`;Geomdetail.CARD3 ]);;
367 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
368 e (REWRITE_TAC[ASSUME `u0 = u2:real^3`;
369 SET_RULE `{u2, u1, u2, u3} = {u1,u2,u3}`;Geomdetail.CARD3 ]);;
371 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
372 e (REWRITE_TAC[ASSUME `u0 = u3:real^3`;
373 SET_RULE `{u3, u1, u2, u3} = {u1,u2,u3}`;Geomdetail.CARD3 ]);;
375 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
376 e (REWRITE_TAC[ASSUME `u1 = u2:real^3`;
377 SET_RULE `{u0, u2, u2, u3} = {u0,u2,u3}`;Geomdetail.CARD3 ]);;
379 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
380 e (REWRITE_TAC[ASSUME `u1 = u3:real^3`;
381 SET_RULE `{u0, u3, u2, u3} = {u0,u2,u3}`;Geomdetail.CARD3 ]);;
383 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
384 e (REWRITE_TAC[ASSUME `u2 = u3:real^3`;
385 SET_RULE `{u0, u1, u3, u3} = {u0,u1,u3}`;Geomdetail.CARD3 ]);;
388 e (NEW_GOAL `edgeX V X = {{u0,u1:real^3}, {u0,u2}, {u0,u3},
389 {u1,u2}, {u1,u3}, {u2,u3}}`);;
390 e (REWRITE_TAC[edgeX]);;
391 e (ONCE_REWRITE_TAC[SET_EQ_LEMMA]);;
392 e (REWRITE_TAC[IN_ELIM_THM]);;
393 e (REPEAT STRIP_TAC);;
395 e (UNDISCH_TAC `VX V X u` THEN UNDISCH_TAC `VX V X v`);;
396 e (REWRITE_TAC[MESON[IN] `VX V X s <=> s IN VX V X`]);;
397 e (ASM_REWRITE_TAC[SET_RULE `v IN {u0, u1, u2, u3} <=>
398 v = u0 \/ v = u1 \/ v = u2 \/ v = u3`]);;
399 e (REPEAT STRIP_TAC);;
401 e (ASM_MESON_TAC[]);;
402 e (ASM_MESON_TAC[]);;
403 e (REWRITE_WITH `{u,v} = {v,u:real^3}`);;
405 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
406 e (REWRITE_WITH `{u,v} = {v,u:real^3}`);;
408 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
409 e (REWRITE_WITH `{u,v} = {v,u:real^3}`);;
411 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
412 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
414 e (ASM_MESON_TAC[]);;
415 e (ASM_MESON_TAC[]);;
416 e (REWRITE_WITH `{u,v} = {v,u:real^3}`);;
418 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
419 e (REWRITE_WITH `{u,v} = {v,u:real^3}`);;
421 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
422 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
423 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
425 e (ASM_MESON_TAC[]);;
426 e (ASM_MESON_TAC[]);;
427 e (REWRITE_WITH `{u,v} = {v,u:real^3}`);;
429 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
430 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
431 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
432 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
434 e (ASM_MESON_TAC[]);;
435 e (ASM_MESON_TAC[]);;
437 e (UP_ASM_TAC THEN REWRITE_TAC[SET_RULE `x IN {a,b,c,d,e,f} <=>
438 x = a \/ x = b \/ x = c \/ x = d \/ x = e \/ x = f`]);;
439 e (REWRITE_TAC[MESON[IN] `VX V X s <=> s IN VX V X`]);;
440 e (ASM_REWRITE_TAC[SET_RULE `v IN {u0, u1, u2, u3} <=>
441 v = u0 \/ v = u1 \/ v = u2 \/ v = u3`]);;
442 e (REPEAT STRIP_TAC);;
443 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u1:real^3` THEN ASM_REWRITE_TAC[]);;
444 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u2:real^3` THEN ASM_REWRITE_TAC[]);;
445 e (EXISTS_TAC `u0:real^3` THEN EXISTS_TAC `u3:real^3` THEN ASM_REWRITE_TAC[]);;
446 e (EXISTS_TAC `u1:real^3` THEN EXISTS_TAC `u2:real^3` THEN ASM_REWRITE_TAC[]);;
447 e (EXISTS_TAC `u1:real^3` THEN EXISTS_TAC `u3:real^3` THEN ASM_REWRITE_TAC[]);;
448 e (EXISTS_TAC `u2:real^3` THEN EXISTS_TAC `u3:real^3` THEN ASM_REWRITE_TAC[]);;
451 e (EXPAND_TAC "y1");;
452 e (FIRST_ASSUM MATCH_MP_TAC);;
453 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
456 e (EXPAND_TAC "y2");;
457 e (FIRST_ASSUM MATCH_MP_TAC);;
458 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
461 e (EXPAND_TAC "y3");;
462 e (FIRST_ASSUM MATCH_MP_TAC);;
463 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
466 e (EXPAND_TAC "y4");;
467 e (FIRST_ASSUM MATCH_MP_TAC);;
468 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
471 e (EXPAND_TAC "y5");;
472 e (FIRST_ASSUM MATCH_MP_TAC);;
473 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
476 e (EXPAND_TAC "y6");;
477 e (FIRST_ASSUM MATCH_MP_TAC);;
478 e (ASM_REWRITE_TAC[] THEN SET_TAC[]);;
480 e (REWRITE_WITH `rad2_y y1 y2 y3 y4 y5 y6 = radV {u0,u1,u2,u3:real^3} pow 2`);;
481 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
482 e (REWRITE_TAC[rad2_y; y_of_x]);;
483 e (GMATCH_SIMP_TAC (REWRITE_RULE[LET_DEF;LET_END_DEF] Merge_ineq.GDRQXLGv2));;
486 e (REWRITE_TAC[ARITH_RULE `4 = 3 + 1`; GSYM set_of_list;
487 GSYM (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
488 e (MATCH_MP_TAC Marchal_cells_3.BARV_CARD_LEMMA);;
489 e (EXISTS_TAC `V:real^3->bool` THEN ASM_REWRITE_TAC[]);;
490 e (REWRITE_TAC[coplanar_alt]);;
491 e (REWRITE_TAC[GSYM Trigonometry2.coplanar1]);;
492 e (REWRITE_TAC[coplanar] THEN STRIP_TAC);;
493 e (NEW_GOAL `affine hull {u0, u1, u2, u3:real^3} SUBSET
494 affine hull (affine hull {u, v, w})`);;
495 e (ASM_SIMP_TAC[Marchal_cells_2.AFFINE_SUBSET_KY_LEMMA]);;
496 e (UP_ASM_TAC THEN REWRITE_WITH `affine hull (affine hull {u, v, w}) =
497 affine hull {u:real^3, v, w}`);;
498 e (REWRITE_TAC[AFFINE_HULL_EQ; AFFINE_AFFINE_HULL]);;
500 e (NEW_GOAL `NULLSET X`);;
501 e (MATCH_MP_TAC NEGLIGIBLE_SUBSET);;
502 e (EXISTS_TAC `affine hull {u0, u1, u2, u3:real^3}`);;
504 e (MATCH_MP_TAC NEGLIGIBLE_SUBSET);;
505 e (EXISTS_TAC `affine hull {u,v,w:real^3}`);;
506 e (REWRITE_TAC[NEGLIGIBLE_AFFINE_HULL_3]);;
507 e (ASM_REWRITE_TAC[]);;
508 e (REWRITE_TAC[ASSUME `X = mcell i V ul`]);;
509 e (REWRITE_WITH `mcell i V ul = mcell4 V ul`);;
510 e (MESON_TAC[ARITH_RULE `4 >= 4`; MCELL_EXPLICIT; ASSUME `i >= 4`]);;
511 e (REWRITE_TAC[mcell4]);;
513 e (ASM_REWRITE_TAC[set_of_list; CONVEX_HULL_SUBSET_AFFINE_HULL]);;
515 e (UP_ASM_TAC THEN ASM_REWRITE_TAC[]);;
517 e (REWRITE_TAC[GSYM REAL_POW_2]);;
518 e (EXPAND_TAC "y1" THEN EXPAND_TAC "y2" THEN EXPAND_TAC "y3");;
519 e (EXPAND_TAC "y4" THEN EXPAND_TAC "y5" THEN EXPAND_TAC "y6");;
521 e (REWRITE_WITH `radV {u0, u1, u2, u3:real^3} = hl (ul:(real^3)list)`);;
522 e (ASM_REWRITE_TAC[HL;set_of_list]);;
523 e (REWRITE_WITH `hl (ul:(real^3)list) pow 2 < &2 <=>
524 sqrt (hl ul pow 2) < sqrt (&2)`);;
525 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
526 e (MATCH_MP_TAC Real_ext.REAL_PROP_LT_SQRT);;
527 e (REWRITE_TAC[REAL_LE_POW_2] THEN REAL_ARITH_TAC);;
528 e (REWRITE_WITH `sqrt (hl (ul:(real^3)list) pow 2) = hl ul`);;
529 e (MATCH_MP_TAC POW_2_SQRT);;
530 e (MATCH_MP_TAC (REAL_ARITH `&0 < a ==> &0 <= a`));;
531 e (NEW_GOAL `hl (truncate_simplex 1 ul) <= hl (ul:(real^3)list)`);;
532 e (MATCH_MP_TAC Rogers.HL_DECREASE);;
533 e (EXISTS_TAC `V:real^3->bool` THEN EXISTS_TAC `3`);;
534 e (ASM_REWRITE_TAC[IN; ARITH_RULE `1 <= 3`]);;
535 e (NEW_GOAL `&0 < hl (truncate_simplex 1 (ul:(real^3)list))`);;
536 e (MATCH_MP_TAC Marchal_cells_2.BARV_IMP_HL_1_POS_LT);;
537 e (EXISTS_TAC `V:real^3->bool` THEN ASM_REWRITE_TAC[]);;
538 e (ASM_REAL_ARITH_TAC);;
539 e (ASM_REWRITE_TAC[]);;
542 e (UP_ASM_TAC THEN ASM_REWRITE_TAC[]);;
543 e (UP_ASM_TAC THEN ASM_REWRITE_TAC[]);;
545 (* --- Finish the case 4-cell, the remains are 0-3 cells ------------------ *)
546 (* ======================================================================== *)
548 e (ASM_CASES_TAC `i = 0`);;
549 e (NEW_GOAL `VX V X = {}`);;
550 e (REWRITE_WITH `VX V X = V INTER X`);;
551 e (MATCH_MP_TAC Hdtfnfz.HDTFNFZ);;
552 e (EXISTS_TAC `ul:(real^3)list` THEN EXISTS_TAC `i:num`);;
553 e (ASM_REWRITE_TAC[]);;
554 e (ASM_REWRITE_TAC[]);;
555 e (MATCH_MP_TAC Lepjbdj.LEPJBDJ_0);;
556 e (ASM_REWRITE_TAC[]);;
557 e (NEW_GOAL `edgeX V X = {}`);;
558 e (REWRITE_TAC[edgeX]);;
559 e (ASM_REWRITE_TAC[MESON[IN] `{} x <=> x IN {}`; SET_RULE `x IN {} <=> F`]);;
561 e (REWRITE_TAC[gammaX]);;
562 e (MATCH_MP_TAC (REAL_ARITH `b = &0 /\ c = &0 /\ &0 <= a ==> a - b + c >= &0`));;
563 e (REPEAT STRIP_TAC);;
564 e (ASM_REWRITE_TAC[total_solid; SUM_CLAUSES] THEN REAL_ARITH_TAC);;
565 e (ASM_REWRITE_TAC[SUM_CLAUSES] THEN REAL_ARITH_TAC);;
566 e (MATCH_MP_TAC MEASURE_POS_LE);;
567 e (ASM_REWRITE_TAC[] THEN MATCH_MP_TAC Urrphbz1.MEASURABLE_MCELL);;
568 e (ASM_REWRITE_TAC[]);;
570 (* --- Finish the case 0-cell, the remains are 1-3 cells ------------------ *)
571 (* ======================================================================== *)
572 (* The 3-cell case *)
574 e (ASM_CASES_TAC `i = 3`);;
575 e (NEW_GOAL `X = mcell3 V ul`);;
576 e (ASM_REWRITE_TAC[]);;
577 e (ASM_SIMP_TAC[MCELL_EXPLICIT]);;
578 e (UP_ASM_TAC THEN REWRITE_TAC[mcell3]);;
582 e (NEW_GOAL `?u0 u1 u2 u3. ul = [u0; u1; u2; u3:real^3]`);;
583 e (MATCH_MP_TAC BARV_3_EXPLICIT);;
584 e (EXISTS_TAC `V:real^3->bool` THEN ASM_REWRITE_TAC[]);;
585 e (UP_ASM_TAC THEN STRIP_TAC);;
588 e (NEW_GOAL `(?s. between s (omega_list_n V ul 2,omega_list_n V ul 3) /\
589 dist (u0,s) = sqrt (&2) /\
591 e (MATCH_MP_TAC MXI_EXPLICIT);;
592 e (EXISTS_TAC `u1:real^3` THEN EXISTS_TAC `u2:real^3` THEN EXISTS_TAC `u3:real^3`);;
593 e (ASM_REWRITE_TAC[]);;
594 e (UP_ASM_TAC THEN STRIP_TAC);;
595 e (ABBREV_TAC `s2 = omega_list_n V ul 2`);;
596 e (ABBREV_TAC `s3 = omega_list_n V ul 3`);;
597 e (ABBREV_TAC `vl = truncate_simplex 2 (ul:(real^3)list)`);;
598 e (NEW_GOAL `s2 IN voronoi_list V vl`);;
599 e (EXPAND_TAC "s2" THEN EXPAND_TAC "vl");;
600 e (MATCH_MP_TAC Rogers.OMEGA_LIST_N_IN_VORONOI_LIST_GEN);;
601 e (EXISTS_TAC `3` THEN ASM_REWRITE_TAC[]);;
604 e (NEW_GOAL `s3 IN voronoi_list V vl`);;
605 e (EXPAND_TAC "s3" THEN EXPAND_TAC "vl");;
606 e (MATCH_MP_TAC Rogers.OMEGA_LIST_N_IN_VORONOI_LIST_GEN);;
607 e (EXISTS_TAC `3` THEN ASM_REWRITE_TAC[]);;
610 e (NEW_GOAL `s IN voronoi_list V vl`);;
611 e (MATCH_MP_TAC (SET_RULE `(?x. s IN x /\ x SUBSET t)==> s IN t`));;
612 e (EXISTS_TAC `convex hull {s2,s3:real^3}`);;
614 e (ASM_REWRITE_TAC[GSYM BETWEEN_IN_CONVEX_HULL]);;
615 e (NEW_GOAL `voronoi_list V vl = convex hull (voronoi_list V vl)`);;
616 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
617 e (REWRITE_TAC[CONVEX_HULL_EQ; Packing3.CONVEX_VORONOI_LIST]);;
618 e (ONCE_REWRITE_TAC[ASSUME `voronoi_list V vl = convex hull voronoi_list V vl`]);;
619 e (MATCH_MP_TAC Marchal_cells.CONVEX_HULL_SUBSET);;
622 e (MP_TAC (ASSUME `s IN voronoi_list V vl`));;
623 e (EXPAND_TAC "vl" THEN REWRITE_TAC[ASSUME `ul = [u0;u1;u2;u3:real^3]`;
624 TRUNCATE_SIMPLEX_EXPLICIT_2; VORONOI_LIST; VORONOI_SET; set_of_list;
625 SET_RULE `x IN {a,b,c} <=> x=a\/x=b\/x=c`; IN_INTERS]);;
627 e (NEW_GOAL `s IN voronoi_closed V u0 /\ s IN voronoi_closed V u1 /\
628 s IN voronoi_closed V (u2:real^3)`);;
629 e (UP_ASM_TAC THEN SET_TAC[]);;
630 e (UP_ASM_TAC THEN REWRITE_TAC[voronoi_closed; IN; IN_ELIM_THM] THEN
633 e (NEW_GOAL `u0 IN V /\ u1 IN V /\ u2 IN V /\ (u3:real^3) IN V`);;
634 e (REWRITE_TAC[SET_RULE `u0 IN V /\ u1 IN V /\ u2 IN V /\ (u3:real^3) IN V <=>
635 {u0,u1,u2,u3} SUBSET V`; GSYM set_of_list; GSYM
636 (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
637 e (MATCH_MP_TAC BARV_SUBSET);;
638 e (EXISTS_TAC `3` THEN ASM_REWRITE_TAC[]);;
639 e (FIRST_ASSUM MP_TAC THEN REWRITE_TAC[IN] THEN STRIP_TAC);;
641 e (NEW_GOAL `dist (s,u1:real^3) = sqrt(&2)`);;
642 e (REWRITE_TAC[GSYM (ASSUME `dist (u0:real^3, s) = sqrt (&2)`)]);;
643 e (REWRITE_WITH `dist (u0,s:real^3) = dist (s,u0)`);;
645 e (REWRITE_TAC[REAL_ARITH `a = b <=> a <= b /\ b <= a`]);;
647 e (NEW_GOAL `dist (s,u2:real^3) = sqrt(&2)`);;
648 e (REWRITE_TAC[GSYM (ASSUME `dist (u0:real^3, s) = sqrt (&2)`)]);;
649 e (REWRITE_WITH `dist (u0,s:real^3) = dist (s,u0)`);;
651 e (REWRITE_TAC[REAL_ARITH `a = b <=> a <= b /\ b <= a`]);;
654 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} = 4`);;
655 e (REWRITE_TAC[ARITH_RULE `4 = 3 + 1`; GSYM set_of_list;
656 GSYM (ASSUME `ul = [u0;u1;u2;u3:real^3]`)]);;
657 e (MATCH_MP_TAC Marchal_cells_3.BARV_CARD_LEMMA);;
658 e (EXISTS_TAC `V:real^3->bool` THEN ASM_REWRITE_TAC[]);;
659 e (NEW_GOAL `~(u0 = u1:real^3) /\ ~(u0 = u2) /\ ~(u0 = u3) /\
660 ~(u1 = u2) /\ ~(u1 = u3) /\ ~(u2 = u3)`);;
661 e (REPEAT STRIP_TAC);;
662 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
663 e (REWRITE_TAC[ASSUME `u0 = u1:real^3`;
664 SET_RULE `{u1, u1, u2, u3} = {u1,u2,u3}`;Geomdetail.CARD3 ]);;
666 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
667 e (REWRITE_TAC[ASSUME `u0 = u2:real^3`;
668 SET_RULE `{u2, u1, u2, u3} = {u1,u2,u3}`;Geomdetail.CARD3 ]);;
670 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
671 e (REWRITE_TAC[ASSUME `u0 = u3:real^3`;
672 SET_RULE `{u3, u1, u2, u3} = {u1,u2,u3}`;Geomdetail.CARD3 ]);;
674 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
675 e (REWRITE_TAC[ASSUME `u1 = u2:real^3`;
676 SET_RULE `{u0, u2, u2, u3} = {u0,u2,u3}`;Geomdetail.CARD3 ]);;
678 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
679 e (REWRITE_TAC[ASSUME `u1 = u3:real^3`;
680 SET_RULE `{u0, u3, u2, u3} = {u0,u2,u3}`;Geomdetail.CARD3 ]);;
682 e (NEW_GOAL `CARD {u0, u1, u2, u3:real^3} <= 3`);;
683 e (REWRITE_TAC[ASSUME `u2 = u3:real^3`;
684 SET_RULE `{u0, u1, u3, u3} = {u0,u1,u3}`;Geomdetail.CARD3 ]);;
688 e (NEW_GOAL `VX V X = {u0,u1,u2}`);;
689 e (REWRITE_WITH `VX V X = V INTER X`);;
690 e (MATCH_MP_TAC Hdtfnfz.HDTFNFZ);;
691 e (EXISTS_TAC `ul:(real^3)list` THEN EXISTS_TAC `3`);;
692 e (ASM_REWRITE_TAC[]);;
693 e (REWRITE_WITH `X = mcell 3 V ul`);;
694 e (ASM_REWRITE_TAC[]);;
696 `V INTER mcell 3 V ul = set_of_list (truncate_simplex (3 - 1) ul)`);;
697 e (MATCH_MP_TAC Lepjbdj.LEPJBDJ);;
698 e (ASM_REWRITE_TAC[ARITH_RULE `1 <= 3 /\ 3 <= 4`]);;
699 e (REWRITE_WITH ` mcell 3 V [u0; u1; u2; u3] = X`);;
700 e (ASM_REWRITE_TAC[]);;
701 e (ASM_REWRITE_TAC[]);;
702 e (ASM_REWRITE_TAC[ARITH_RULE `3 - 1 = 2`; TRUNCATE_SIMPLEX_EXPLICIT_2;
705 e (UNDISCH_TAC `X = convex hull (set_of_list vl UNION {mxi V ul})`);;
706 e (EXPAND_TAC "vl" THEN REWRITE_TAC[set_of_list; TRUNCATE_SIMPLEX_EXPLICIT_2;
707 ASSUME `ul = [u0;u1;u2;u3:real^3]`;
708 SET_RULE `{a,b,c} UNION {d} = {a,b,c,d}`]);;
709 e (REWRITE_WITH `mxi V [u0; u1; u2; u3] = s`);;
710 e (EXPAND_TAC "s" THEN AP_TERM_TAC THEN ASM_REWRITE_TAC[]);;
713 e (NEW_GOAL `~coplanar {u0,u1,u2,s:real^3}`);;
714 e (ONCE_REWRITE_TAC[GSYM COPLANAR_AFFINE_HULL_COPLANAR]);;
716 e (NEW_GOAL `NULLSET X`);;
717 e (MATCH_MP_TAC COPLANAR_IMP_NEGLIGIBLE);;
718 e (REWRITE_TAC[ASSUME `X = convex hull {u0, u1, u2, s:real^3}`]);;
719 e (MATCH_MP_TAC COPLANAR_SUBSET);;
720 e (EXISTS_TAC `affine hull {u0, u1, u2, s:real^3}`);;
721 e (ASM_REWRITE_TAC[CONVEX_HULL_SUBSET_AFFINE_HULL]);;
722 e (UP_ASM_TAC THEN ASM_REWRITE_TAC[]);;
724 e (NEW_GOAL `CARD {u0, u1, u2, s:real^3} = 4`);;
725 e (NEW_GOAL `CARD {u0, u1, u2, s:real^3} <= 4`);;
726 e (REWRITE_TAC[Geomdetail.CARD4]);;
727 e (ASM_CASES_TAC `CARD {u0, u1, u2, s:real^3} <= 3`);;
729 e (UNDISCH_TAC `~coplanar {u0, u1, u2, s:real^3}`);;
730 e (REWRITE_TAC[] THEN MATCH_MP_TAC COPLANAR_SMALL);;
731 e (ASM_REWRITE_TAC[Geomdetail.FINITE6]);;
732 e (UP_ASM_TAC THEN MESON_TAC[]);;
735 e (NEW_GOAL `~(u0 = s:real^3) /\ ~(u1 = s) /\ ~(u2 = s)`);;
736 e (REPEAT STRIP_TAC);;
737 e (NEW_GOAL `CARD {u0, u1, u2,s:real^3} <= 3`);;
738 e (REWRITE_TAC[ASSUME `u0 = s:real^3`;
739 SET_RULE `{s, u1, u2, s} = {s,u1,u2}`;Geomdetail.CARD3 ]);;
741 e (NEW_GOAL `CARD {u0, u1, u2, s:real^3} <= 3`);;
742 e (REWRITE_TAC[ASSUME `u1 = s:real^3`;
743 SET_RULE `{u0, s, u2, s} = {u0,u2,s}`;Geomdetail.CARD3 ]);;
745 e (NEW_GOAL `CARD {u0, u1, u2, s:real^3} <= 3`);;
746 e (REWRITE_TAC[ASSUME `u2 = s:real^3`;
747 SET_RULE `{u0, u1, s, s} = {u0,u1,s}`;Geomdetail.CARD3 ]);;
750 (* ========================================================================= *)
752 e (ABBREV_TAC `y4 = dist (u1:real^3, u2)`);;
753 e (ABBREV_TAC `y5 = dist (u0:real^3, u2)`);;
754 e (ABBREV_TAC `y6 = dist (u0:real^3, u1)`);;
758 `vol X = vol_y sqrt2 sqrt2 sqrt2 y4 y5 y6 /\
759 sol u0 X = sol_y y5 y6 sqrt2 sqrt2 sqrt2 y4 /\
760 sol u1 X = sol_y y6 y4 sqrt2 sqrt2 sqrt2 y5 /\
761 sol u2 X = sol_y y4 y5 sqrt2 sqrt2 sqrt2 y6 /\
762 dihX V X (u0,u1) = dih_y y6 y4 sqrt2 sqrt2 sqrt2 y5 /\
763 dihX V X (u0,u2) = dih_y y5 y6 sqrt2 sqrt2 sqrt2 y4 /\
764 dihX V X (u1,u2) = dih_y y4 y5 sqrt2 sqrt2 sqrt2 y6 /\
765 gammaX V X lmfun = gamma3f y4 y5 y6 sqrt2 lmfun`);;
767 e (FIRST_ASSUM MATCH_MP_TAC);;
768 e (MP_TAC (ASSUME `packing V`));;
769 e (REWRITE_TAC[packing] THEN STRIP_TAC);;
770 e (EXPAND_TAC "y4" THEN EXPAND_TAC "y5" THEN EXPAND_TAC "y6");;
771 e (REPEAT STRIP_TAC);;
775 e (NEW_GOAL `dist (u1,u2) <= dist (s,u1) + dist (s,u2:real^3)`);;
777 e (ASM_REAL_ARITH_TAC);;
778 e (NEW_GOAL `dist (u0,u2) <= dist (s,u2) + dist (u0,s:real^3)`);;
780 e (ASM_REAL_ARITH_TAC);;
781 e (NEW_GOAL `dist (u0,u1) <= dist (s,u1) + dist (u0,s:real^3)`);;
783 e (ASM_REAL_ARITH_TAC);;
785 e (REWRITE_TAC[GSYM d3]);;
786 e (REWRITE_WITH `eta_y (d3 u1 u2) (d3 u0 u2) (d3 u0 u1) = radV {u0,u1,u2}`);;
787 e (ONCE_REWRITE_TAC[EQ_SYM_EQ]);;
788 e (MATCH_MP_TAC Collect_geom.RADV_FORMULAR);;
790 e (MATCH_MP_TAC NOT_COPLANAR_NOT_COLLINEAR);;
791 e (EXISTS_TAC `s:real^3`);;
792 e (ASM_REWRITE_TAC[]);;
793 e (REWRITE_WITH `radV {u0:real^3,u1,u2} = hl (truncate_simplex 2 (ul:(real^3)list))`);;
794 e (REWRITE_TAC[TRUNCATE_SIMPLEX_EXPLICIT_2; set_of_list; HL;
795 ASSUME `ul = [u0;u1;u2;u3:real^3]`]);;
796 e (ASM_REWRITE_TAC[]);;
800 e (UP_ASM_TAC THEN ASM_REWRITE_TAC[]);;
801 e (UP_ASM_TAC THEN ASM_REWRITE_TAC[]);;
803 (* --- Finish the case 3-cell, the remains are 1-cell and 2-cell ---------- *)
804 (* ======================================================================== *)