Theorem cantnflem2 8470

Description: Lemma for cantnf 8473. (Contributed by Mario Carneiro, 28-May-2015.)

Hypotheses

Ref	Expression
cantnfs.s	⊢ 𝑆 = dom (𝐴 CNF 𝐵)
cantnfs.a	⊢ (𝜑 → 𝐴 ∈ On)
cantnfs.b	⊢ (𝜑 → 𝐵 ∈ On)
oemapval.t	⊢ 𝑇 = {⟨𝑥, 𝑦⟩ ∣ ∃𝑧 ∈ 𝐵 ((𝑥‘𝑧) ∈ (𝑦‘𝑧) ∧ ∀𝑤 ∈ 𝐵 (𝑧 ∈ 𝑤 → (𝑥‘𝑤) = (𝑦‘𝑤)))}
cantnf.c	⊢ (𝜑 → 𝐶 ∈ (𝐴 ↑𝑜 𝐵))
cantnf.s	⊢ (𝜑 → 𝐶 ⊆ ran (𝐴 CNF 𝐵))
cantnf.e	⊢ (𝜑 → ∅ ∈ 𝐶)

Assertion

Ref	Expression
cantnflem2	⊢ (𝜑 → (𝐴 ∈ (On ∖ 2𝑜) ∧ 𝐶 ∈ (On ∖ 1𝑜)))

Distinct variable groups:   𝑥,𝑤,𝑦,𝑧,𝐵   𝑤,𝐶,𝑥,𝑦,𝑧   𝑤,𝐴,𝑥,𝑦,𝑧   𝑥,𝑆,𝑦,𝑧   𝜑,𝑥,𝑦,𝑧

Allowed substitution hints:   𝜑(𝑤)   𝑆(𝑤)   𝑇(𝑥,𝑦,𝑧,𝑤)

Proof of Theorem cantnflem2

Step	Hyp	Ref	Expression
1		cantnfs.a	. . 3 ⊢ (𝜑 → 𝐴 ∈ On)
2		cantnfs.b	. . . . . . . . . 10 ⊢ (𝜑 → 𝐵 ∈ On)
3		oecl 7504	. . . . . . . . . 10 ⊢ ((𝐴 ∈ On ∧ 𝐵 ∈ On) → (𝐴 ↑𝑜 𝐵) ∈ On)
4	1, 2, 3	syl2anc 691	. . . . . . . . 9 ⊢ (𝜑 → (𝐴 ↑𝑜 𝐵) ∈ On)
5		cantnf.c	. . . . . . . . 9 ⊢ (𝜑 → 𝐶 ∈ (𝐴 ↑𝑜 𝐵))
6		onelon 5665	. . . . . . . . 9 ⊢ (((𝐴 ↑𝑜 𝐵) ∈ On ∧ 𝐶 ∈ (𝐴 ↑𝑜 𝐵)) → 𝐶 ∈ On)
7	4, 5, 6	syl2anc 691	. . . . . . . 8 ⊢ (𝜑 → 𝐶 ∈ On)
8		cantnf.e	. . . . . . . 8 ⊢ (𝜑 → ∅ ∈ 𝐶)
9		ondif1 7468	. . . . . . . 8 ⊢ (𝐶 ∈ (On ∖ 1𝑜) ↔ (𝐶 ∈ On ∧ ∅ ∈ 𝐶))
10	7, 8, 9	sylanbrc 695	. . . . . . 7 ⊢ (𝜑 → 𝐶 ∈ (On ∖ 1𝑜))
11	10	eldifbd 3553	. . . . . 6 ⊢ (𝜑 → ¬ 𝐶 ∈ 1𝑜)
12		ssel 3562	. . . . . . 7 ⊢ ((𝐴 ↑𝑜 𝐵) ⊆ 1𝑜 → (𝐶 ∈ (𝐴 ↑𝑜 𝐵) → 𝐶 ∈ 1𝑜))
13	5, 12	syl5com 31	. . . . . 6 ⊢ (𝜑 → ((𝐴 ↑𝑜 𝐵) ⊆ 1𝑜 → 𝐶 ∈ 1𝑜))
14	11, 13	mtod 188	. . . . 5 ⊢ (𝜑 → ¬ (𝐴 ↑𝑜 𝐵) ⊆ 1𝑜)
15		oe0m 7485	. . . . . . . . 9 ⊢ (𝐵 ∈ On → (∅ ↑𝑜 𝐵) = (1𝑜 ∖ 𝐵))
16	2, 15	syl 17	. . . . . . . 8 ⊢ (𝜑 → (∅ ↑𝑜 𝐵) = (1𝑜 ∖ 𝐵))
17		difss 3699	. . . . . . . 8 ⊢ (1𝑜 ∖ 𝐵) ⊆ 1𝑜
18	16, 17	syl6eqss 3618	. . . . . . 7 ⊢ (𝜑 → (∅ ↑𝑜 𝐵) ⊆ 1𝑜)
19		oveq1 6556	. . . . . . . 8 ⊢ (𝐴 = ∅ → (𝐴 ↑𝑜 𝐵) = (∅ ↑𝑜 𝐵))
20	19	sseq1d 3595	. . . . . . 7 ⊢ (𝐴 = ∅ → ((𝐴 ↑𝑜 𝐵) ⊆ 1𝑜 ↔ (∅ ↑𝑜 𝐵) ⊆ 1𝑜))
21	18, 20	syl5ibrcom 236	. . . . . 6 ⊢ (𝜑 → (𝐴 = ∅ → (𝐴 ↑𝑜 𝐵) ⊆ 1𝑜))
22		oe1m 7512	. . . . . . . 8 ⊢ (𝐵 ∈ On → (1𝑜 ↑𝑜 𝐵) = 1𝑜)
23		eqimss 3620	. . . . . . . 8 ⊢ ((1𝑜 ↑𝑜 𝐵) = 1𝑜 → (1𝑜 ↑𝑜 𝐵) ⊆ 1𝑜)
24	2, 22, 23	3syl 18	. . . . . . 7 ⊢ (𝜑 → (1𝑜 ↑𝑜 𝐵) ⊆ 1𝑜)
25		oveq1 6556	. . . . . . . 8 ⊢ (𝐴 = 1𝑜 → (𝐴 ↑𝑜 𝐵) = (1𝑜 ↑𝑜 𝐵))
26	25	sseq1d 3595	. . . . . . 7 ⊢ (𝐴 = 1𝑜 → ((𝐴 ↑𝑜 𝐵) ⊆ 1𝑜 ↔ (1𝑜 ↑𝑜 𝐵) ⊆ 1𝑜))
27	24, 26	syl5ibrcom 236	. . . . . 6 ⊢ (𝜑 → (𝐴 = 1𝑜 → (𝐴 ↑𝑜 𝐵) ⊆ 1𝑜))
28	21, 27	jaod 394	. . . . 5 ⊢ (𝜑 → ((𝐴 = ∅ ∨ 𝐴 = 1𝑜) → (𝐴 ↑𝑜 𝐵) ⊆ 1𝑜))
29	14, 28	mtod 188	. . . 4 ⊢ (𝜑 → ¬ (𝐴 = ∅ ∨ 𝐴 = 1𝑜))
30		elpri 4145	. . . . 5 ⊢ (𝐴 ∈ {∅, 1𝑜} → (𝐴 = ∅ ∨ 𝐴 = 1𝑜))
31		df2o3 7460	. . . . 5 ⊢ 2𝑜 = {∅, 1𝑜}
32	30, 31	eleq2s 2706	. . . 4 ⊢ (𝐴 ∈ 2𝑜 → (𝐴 = ∅ ∨ 𝐴 = 1𝑜))
33	29, 32	nsyl 134	. . 3 ⊢ (𝜑 → ¬ 𝐴 ∈ 2𝑜)
34	1, 33	eldifd 3551	. 2 ⊢ (𝜑 → 𝐴 ∈ (On ∖ 2𝑜))
35	34, 10	jca 553	1 ⊢ (𝜑 → (𝐴 ∈ (On ∖ 2𝑜) ∧ 𝐶 ∈ (On ∖ 1𝑜)))

Syntax hints:   → wi 4   ∨ wo 382   ∧ wa 383   = wceq 1475   ∈ wcel 1977  ∀wral 2896  ∃wrex 2897   ∖ cdif 3537   ⊆ wss 3540  ∅c0 3874  {cpr 4127  {copab 4642  dom cdm 5038  ran crn 5039  Oncon0 5640  ‘cfv 5804  (class class class)co 6549  1_𝑜c1o 7440  2_𝑜c2o 7441   ↑_𝑜 coe 7446   CNF ccnf 8441

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-ral 2901  df-rex 2902  df-reu 2903  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-2o 7448  df-oadd 7451  df-omul 7452  df-oexp 7453

This theorem is referenced by:  cantnflem3  8471  cantnflem4  8472