Theorem nchoicelem6 6294

Description: Lemma for nchoice 6308. Split the special set generator into base and inductive values. Theorem 6.6 of [Specker] p. 973. (Contributed by SF, 13-Mar-2015.)

Assertion

Ref	Expression
nchoicelem6	|- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ( Spac ` M) = ({M} u. ( Spac ` (2c ↑c M))))

Proof of Theorem nchoicelem6

Dummy variable x is distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl 443	. . 3 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> M e. NC )
2		snex 4111	. . . . 5 |- {M} e. _V
3		fvex 5339	. . . . 5 |- ( Spac ` (2c ↑c M)) e. _V
4	2, 3	unex 4106	. . . 4 |- ({M} u. ( Spac ` (2c ↑c M))) e. _V
5	4	a1i 10	. . 3 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ({M} u. ( Spac ` (2c ↑c M))) e. _V)
6		snidg 3758	. . . . 5 |- (M e. NC -> M e. {M})
7	6	adantr 451	. . . 4 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> M e. {M})
8		elun1 3430	. . . 4 |- (M e. {M} -> M e. ({M} u. ( Spac ` (2c ↑c M))))
9	7, 8	syl 15	. . 3 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> M e. ({M} u. ( Spac ` (2c ↑c M))))
10		elun 3220	. . . . . . . . . 10 |- (x e. ({M} u. ( Spac ` (2c ↑c M))) <-> (x e. {M} \/ x e. ( Spac ` (2c ↑c M))))
11		elsn 3748	. . . . . . . . . . 11 |- (x e. {M} <-> x = M)
12	11	orbi1i 506	. . . . . . . . . 10 |- ((x e. {M} \/ x e. ( Spac ` (2c ↑c M))) <-> (x = M \/ x e. ( Spac ` (2c ↑c M))))
13	10, 12	bitri 240	. . . . . . . . 9 |- (x e. ({M} u. ( Spac ` (2c ↑c M))) <-> (x = M \/ x e. ( Spac ` (2c ↑c M))))
14		spacssnc 6284	. . . . . . . . . . . . . . 15 |- (M e. NC -> ( Spac ` M) C_ NC )
15	14	adantr 451	. . . . . . . . . . . . . 14 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ( Spac ` M) C_ NC )
16		spacid 6285	. . . . . . . . . . . . . . . 16 |- (M e. NC -> M e. ( Spac ` M))
17	16	adantr 451	. . . . . . . . . . . . . . 15 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> M e. ( Spac ` M))
18		simpr 447	. . . . . . . . . . . . . . 15 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> (M ↑c 0c) e. NC )
19		spaccl 6286	. . . . . . . . . . . . . . 15 |- ((M e. NC /\ M e. ( Spac ` M) /\ (M ↑c 0c) e. NC ) -> (2c ↑c M) e. ( Spac ` M))
20	1, 17, 18, 19	syl3anc 1182	. . . . . . . . . . . . . 14 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> (2c ↑c M) e. ( Spac ` M))
21	15, 20	sseldd 3274	. . . . . . . . . . . . 13 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> (2c ↑c M) e. NC )
22		spacid 6285	. . . . . . . . . . . . 13 |- ((2c ↑c M) e. NC -> (2c ↑c M) e. ( Spac ` (2c ↑c M)))
23	21, 22	syl 15	. . . . . . . . . . . 12 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> (2c ↑c M) e. ( Spac ` (2c ↑c M)))
24		oveq2 5531	. . . . . . . . . . . . 13 |- (x = M -> (2c ↑c x) = (2c ↑c M))
25	24	eleq1d 2419	. . . . . . . . . . . 12 |- (x = M -> ((2c ↑c x) e. ( Spac ` (2c ↑c M)) <-> (2c ↑c M) e. ( Spac ` (2c ↑c M))))
26	23, 25	syl5ibrcom 213	. . . . . . . . . . 11 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> (x = M -> (2c ↑c x) e. ( Spac ` (2c ↑c M))))
27	26	adantr 451	. . . . . . . . . 10 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ (x ↑c 0c) e. NC ) -> (x = M -> (2c ↑c x) e. ( Spac ` (2c ↑c M))))
28		2nnc 6167	. . . . . . . . . . . . . 14 |- 2c e. Nn
29		ceclnn1 6189	. . . . . . . . . . . . . 14 |- ((2c e. Nn /\ M e. NC /\ (M ↑c 0c) e. NC ) -> (2c ↑c M) e. NC )
30	28, 29	mp3an1 1264	. . . . . . . . . . . . 13 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> (2c ↑c M) e. NC )
31	30	adantr 451	. . . . . . . . . . . 12 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ ((x ↑c 0c) e. NC /\ x e. ( Spac ` (2c ↑c M)))) -> (2c ↑c M) e. NC )
32		simprr 733	. . . . . . . . . . . 12 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ ((x ↑c 0c) e. NC /\ x e. ( Spac ` (2c ↑c M)))) -> x e. ( Spac ` (2c ↑c M)))
33		simprl 732	. . . . . . . . . . . 12 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ ((x ↑c 0c) e. NC /\ x e. ( Spac ` (2c ↑c M)))) -> (x ↑c 0c) e. NC )
34		spaccl 6286	. . . . . . . . . . . 12 |- (((2c ↑c M) e. NC /\ x e. ( Spac ` (2c ↑c M)) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ( Spac ` (2c ↑c M)))
35	31, 32, 33, 34	syl3anc 1182	. . . . . . . . . . 11 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ ((x ↑c 0c) e. NC /\ x e. ( Spac ` (2c ↑c M)))) -> (2c ↑c x) e. ( Spac ` (2c ↑c M)))
36	35	expr 598	. . . . . . . . . 10 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ (x ↑c 0c) e. NC ) -> (x e. ( Spac ` (2c ↑c M)) -> (2c ↑c x) e. ( Spac ` (2c ↑c M))))
37	27, 36	jaod 369	. . . . . . . . 9 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ (x ↑c 0c) e. NC ) -> ((x = M \/ x e. ( Spac ` (2c ↑c M))) -> (2c ↑c x) e. ( Spac ` (2c ↑c M))))
38	13, 37	syl5bi 208	. . . . . . . 8 |- (((M e. NC /\ (M ↑c 0c) e. NC ) /\ (x ↑c 0c) e. NC ) -> (x e. ({M} u. ( Spac ` (2c ↑c M))) -> (2c ↑c x) e. ( Spac ` (2c ↑c M))))
39	38	ex 423	. . . . . . 7 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ((x ↑c 0c) e. NC -> (x e. ({M} u. ( Spac ` (2c ↑c M))) -> (2c ↑c x) e. ( Spac ` (2c ↑c M)))))
40	39	com23 72	. . . . . 6 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> (x e. ({M} u. ( Spac ` (2c ↑c M))) -> ((x ↑c 0c) e. NC -> (2c ↑c x) e. ( Spac ` (2c ↑c M)))))
41	40	imp3a 420	. . . . 5 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ((x e. ({M} u. ( Spac ` (2c ↑c M))) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ( Spac ` (2c ↑c M))))
42		elun2 3431	. . . . 5 |- ((2c ↑c x) e. ( Spac ` (2c ↑c M)) -> (2c ↑c x) e. ({M} u. ( Spac ` (2c ↑c M))))
43	41, 42	syl6 29	. . . 4 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ((x e. ({M} u. ( Spac ` (2c ↑c M))) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ({M} u. ( Spac ` (2c ↑c M)))))
44	43	ralrimivw 2698	. . 3 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> A.x e. ( Spac ` M)((x e. ({M} u. ( Spac ` (2c ↑c M))) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ({M} u. ( Spac ` (2c ↑c M)))))
45		spacind 6287	. . 3 |- (((M e. NC /\ ({M} u. ( Spac ` (2c ↑c M))) e. _V) /\ (M e. ({M} u. ( Spac ` (2c ↑c M))) /\ A.x e. ( Spac ` M)((x e. ({M} u. ( Spac ` (2c ↑c M))) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ({M} u. ( Spac ` (2c ↑c M)))))) -> ( Spac ` M) C_ ({M} u. ( Spac ` (2c ↑c M))))
46	1, 5, 9, 44, 45	syl22anc 1183	. 2 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ( Spac ` M) C_ ({M} u. ( Spac ` (2c ↑c M))))
47	16	snssd 3853	. . . 4 |- (M e. NC -> {M} C_ ( Spac ` M))
48	47	adantr 451	. . 3 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> {M} C_ ( Spac ` M))
49		fvex 5339	. . . . 5 |- ( Spac ` M) e. _V
50	49	a1i 10	. . . 4 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ( Spac ` M) e. _V)
51		spaccl 6286	. . . . . . 7 |- ((M e. NC /\ x e. ( Spac ` M) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ( Spac ` M))
52	51	3expib 1154	. . . . . 6 |- (M e. NC -> ((x e. ( Spac ` M) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ( Spac ` M)))
53	52	adantr 451	. . . . 5 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ((x e. ( Spac ` M) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ( Spac ` M)))
54	53	ralrimivw 2698	. . . 4 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> A.x e. ( Spac ` (2c ↑c M))((x e. ( Spac ` M) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ( Spac ` M)))
55		spacind 6287	. . . 4 |- ((((2c ↑c M) e. NC /\ ( Spac ` M) e. _V) /\ ((2c ↑c M) e. ( Spac ` M) /\ A.x e. ( Spac ` (2c ↑c M))((x e. ( Spac ` M) /\ (x ↑c 0c) e. NC ) -> (2c ↑c x) e. ( Spac ` M)))) -> ( Spac ` (2c ↑c M)) C_ ( Spac ` M))
56	21, 50, 20, 54, 55	syl22anc 1183	. . 3 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ( Spac ` (2c ↑c M)) C_ ( Spac ` M))
57	48, 56	unssd 3439	. 2 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ({M} u. ( Spac ` (2c ↑c M))) C_ ( Spac ` M))
58	46, 57	eqssd 3289	1 |- ((M e. NC /\ (M ↑c 0c) e. NC ) -> ( Spac ` M) = ({M} u. ( Spac ` (2c ↑c M))))

Syntax hints:   -> wi 4   \/ wo 357   /\ wa 358   = wceq 1642   e. wcel 1710  A.wral 2614  _Vcvv 2859   u. cun 3207   C_ wss 3257  {csn 3737   Nn cnnc 4373  0_cc0c 4374  ` cfv 4781  (class class class)co 5525   NC cncs 6088  2_cc2c 6094   ↑_c cce 6096   Sp_ac cspac 6273

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-13 1712  ax-14 1714  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925  ax-ext 2334  ax-nin 4078  ax-xp 4079  ax-cnv 4080  ax-1c 4081  ax-sset 4082  ax-si 4083  ax-ins2 4084  ax-ins3 4085  ax-typlower 4086  ax-sn 4087

This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3or 935  df-3an 936  df-nan 1288  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-eu 2208  df-mo 2209  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2478  df-ne 2518  df-ral 2619  df-rex 2620  df-reu 2621  df-rmo 2622  df-rab 2623  df-v 2861  df-sbc 3047  df-nin 3211  df-compl 3212  df-in 3213  df-un 3214  df-dif 3215  df-symdif 3216  df-ss 3259  df-pss 3261  df-nul 3551  df-if 3663  df-pw 3724  df-sn 3741  df-pr 3742  df-uni 3892  df-int 3927  df-opk 4058  df-1c 4136  df-pw1 4137  df-uni1 4138  df-xpk 4185  df-cnvk 4186  df-ins2k 4187  df-ins3k 4188  df-imak 4189  df-cok 4190  df-p6 4191  df-sik 4192  df-ssetk 4193  df-imagek 4194  df-idk 4195  df-iota 4339  df-0c 4377  df-addc 4378  df-nnc 4379  df-fin 4380  df-lefin 4440  df-ltfin 4441  df-ncfin 4442  df-tfin 4443  df-evenfin 4444  df-oddfin 4445  df-sfin 4446  df-spfin 4447  df-phi 4565  df-op 4566  df-proj1 4567  df-proj2 4568  df-opab 4623  df-br 4640  df-1st 4723  df-swap 4724  df-sset 4725  df-co 4726  df-ima 4727  df-si 4728  df-id 4767  df-xp 4784  df-cnv 4785  df-rn 4786  df-dm 4787  df-res 4788  df-fun 4789  df-fn 4790  df-f 4791  df-f1 4792  df-fo 4793  df-f1o 4794  df-fv 4795  df-2nd 4797  df-ov 5526  df-oprab 5528  df-mpt 5652  df-mpt2 5654  df-txp 5736  df-fix 5740  df-compose 5748  df-ins2 5750  df-ins3 5752  df-image 5754  df-ins4 5756  df-si3 5758  df-funs 5760  df-fns 5762  df-pw1fn 5766  df-fullfun 5768  df-clos1 5873  df-trans 5899  df-sym 5908  df-er 5909  df-ec 5947  df-qs 5951  df-map 6001  df-en 6029  df-ncs 6098  df-nc 6101  df-2c 6104  df-ce 6106  df-spac 6274

This theorem is referenced by:  nchoicelem7  6295  nchoicelem14  6302