Theorem fin23lem32 10258

Description: Lemma for fin23 10303. Wrap the previous construction into a function to hide the hypotheses. (Contributed by Stefan O'Rear, 2-Nov-2014.)

Hypotheses

Ref	Expression
fin23lem.a	⊢ 𝑈 = seqω((𝑖 ∈ ω, 𝑢 ∈ V ↦ if(((𝑡‘𝑖) ∩ 𝑢) = ∅, 𝑢, ((𝑡‘𝑖) ∩ 𝑢))), ∪ ran 𝑡)
fin23lem17.f	⊢ 𝐹 = {𝑔 ∣ ∀𝑎 ∈ (𝒫 𝑔 ↑m ω)(∀𝑥 ∈ ω (𝑎‘suc 𝑥) ⊆ (𝑎‘𝑥) → ∩ ran 𝑎 ∈ ran 𝑎)}
fin23lem.b	⊢ 𝑃 = {𝑣 ∈ ω ∣ ∩ ran 𝑈 ⊆ (𝑡‘𝑣)}
fin23lem.c	⊢ 𝑄 = (𝑤 ∈ ω ↦ (℩𝑥 ∈ 𝑃 (𝑥 ∩ 𝑃) ≈ 𝑤))
fin23lem.d	⊢ 𝑅 = (𝑤 ∈ ω ↦ (℩𝑥 ∈ (ω ∖ 𝑃)(𝑥 ∩ (ω ∖ 𝑃)) ≈ 𝑤))
fin23lem.e	⊢ 𝑍 = if(𝑃 ∈ Fin, (𝑡 ∘ 𝑅), ((𝑧 ∈ 𝑃 ↦ ((𝑡‘𝑧) ∖ ∩ ran 𝑈)) ∘ 𝑄))

Assertion

Ref	Expression
fin23lem32	⊢ (𝐺 ∈ 𝐹 → ∃𝑓∀𝑏((𝑏:ω–1-1→V ∧ ∪ ran 𝑏 ⊆ 𝐺) → ((𝑓‘𝑏):ω–1-1→V ∧ ∪ ran (𝑓‘𝑏) ⊊ ∪ ran 𝑏)))

Distinct variable groups:   𝑔,𝑖,𝑡,𝑢,𝑣,𝑥,𝑧   𝑎,𝑏,𝑖,𝑢,𝑡   𝐹,𝑎,𝑡   𝑤,𝑎,𝑥,𝑧,𝑃,𝑏   𝑣,𝑎,𝑅,𝑏,𝑖,𝑢   𝑈,𝑎,𝑏,𝑖,𝑢,𝑣,𝑧   𝑓,𝑎,𝑍,𝑏   𝑔,𝑎,𝐺,𝑏,𝑡,𝑓,𝑥

Allowed substitution hints:   𝑃(𝑣,𝑢,𝑡,𝑓,𝑔,𝑖)   𝑄(𝑥,𝑧,𝑤,𝑣,𝑢,𝑡,𝑓,𝑔,𝑖,𝑎,𝑏)   𝑅(𝑥,𝑧,𝑤,𝑡,𝑓,𝑔)   𝑈(𝑥,𝑤,𝑡,𝑓,𝑔)   𝐹(𝑥,𝑧,𝑤,𝑣,𝑢,𝑓,𝑔,𝑖,𝑏)   𝐺(𝑧,𝑤,𝑣,𝑢,𝑖)   𝑍(𝑥,𝑧,𝑤,𝑣,𝑢,𝑡,𝑔,𝑖)

Proof of Theorem fin23lem32

Step	Hyp	Ref	Expression
1		fin23lem.a	. . . . . . . 8 ⊢ 𝑈 = seqω((𝑖 ∈ ω, 𝑢 ∈ V ↦ if(((𝑡‘𝑖) ∩ 𝑢) = ∅, 𝑢, ((𝑡‘𝑖) ∩ 𝑢))), ∪ ran 𝑡)
2		fin23lem17.f	. . . . . . . 8 ⊢ 𝐹 = {𝑔 ∣ ∀𝑎 ∈ (𝒫 𝑔 ↑m ω)(∀𝑥 ∈ ω (𝑎‘suc 𝑥) ⊆ (𝑎‘𝑥) → ∩ ran 𝑎 ∈ ran 𝑎)}
3		fin23lem.b	. . . . . . . 8 ⊢ 𝑃 = {𝑣 ∈ ω ∣ ∩ ran 𝑈 ⊆ (𝑡‘𝑣)}
4		fin23lem.c	. . . . . . . 8 ⊢ 𝑄 = (𝑤 ∈ ω ↦ (℩𝑥 ∈ 𝑃 (𝑥 ∩ 𝑃) ≈ 𝑤))
5		fin23lem.d	. . . . . . . 8 ⊢ 𝑅 = (𝑤 ∈ ω ↦ (℩𝑥 ∈ (ω ∖ 𝑃)(𝑥 ∩ (ω ∖ 𝑃)) ≈ 𝑤))
6		fin23lem.e	. . . . . . . 8 ⊢ 𝑍 = if(𝑃 ∈ Fin, (𝑡 ∘ 𝑅), ((𝑧 ∈ 𝑃 ↦ ((𝑡‘𝑧) ∖ ∩ ran 𝑈)) ∘ 𝑄))
7	1, 2, 3, 4, 5, 6	fin23lem28 10254	. . . . . . 7 ⊢ (𝑡:ω–1-1→V → 𝑍:ω–1-1→V)
8	7	ad2antrl 734	. . . . . 6 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝑍:ω–1-1→V)
9		simprl 776	. . . . . . 7 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝑡:ω–1-1→V)
10		simpl 483	. . . . . . 7 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝐺 ∈ 𝐹)
11		simprr 778	. . . . . . 7 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → ∪ ran 𝑡 ⊆ 𝐺)
12	1, 2, 3, 4, 5, 6	fin23lem31 10257	. . . . . . 7 ⊢ ((𝑡:ω–1-1→V ∧ 𝐺 ∈ 𝐹 ∧ ∪ ran 𝑡 ⊆ 𝐺) → ∪ ran 𝑍 ⊊ ∪ ran 𝑡)
13	9, 10, 11, 12	syl3anc 1379	. . . . . 6 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → ∪ ran 𝑍 ⊊ ∪ ran 𝑡)
14		f1fn 6725	. . . . . . . . . . . 12 ⊢ (𝑡:ω–1-1→V → 𝑡 Fn ω)
15		dffn3 6668	. . . . . . . . . . . 12 ⊢ (𝑡 Fn ω ↔ 𝑡:ω⟶ran 𝑡)
16	14, 15	sylib 219	. . . . . . . . . . 11 ⊢ (𝑡:ω–1-1→V → 𝑡:ω⟶ran 𝑡)
17	16	ad2antrl 734	. . . . . . . . . 10 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝑡:ω⟶ran 𝑡)
18		sspwuni 5030	. . . . . . . . . . . 12 ⊢ (ran 𝑡 ⊆ 𝒫 𝐺 ↔ ∪ ran 𝑡 ⊆ 𝐺)
19	18	biimpri 229	. . . . . . . . . . 11 ⊢ (∪ ran 𝑡 ⊆ 𝐺 → ran 𝑡 ⊆ 𝒫 𝐺)
20	19	ad2antll 735	. . . . . . . . . 10 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → ran 𝑡 ⊆ 𝒫 𝐺)
21	17, 20	fssd 6673	. . . . . . . . 9 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝑡:ω⟶𝒫 𝐺)
22		pwexg 5308	. . . . . . . . . . 11 ⊢ (𝐺 ∈ 𝐹 → 𝒫 𝐺 ∈ V)
23	22	adantr 481	. . . . . . . . . 10 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝒫 𝐺 ∈ V)
24		vex 3435	. . . . . . . . . . . 12 ⊢ 𝑡 ∈ V
25		f1f 6724	. . . . . . . . . . . 12 ⊢ (𝑡:ω–1-1→V → 𝑡:ω⟶V)
26		dmfex 7846	. . . . . . . . . . . 12 ⊢ ((𝑡 ∈ V ∧ 𝑡:ω⟶V) → ω ∈ V)
27	24, 25, 26	sylancr 593	. . . . . . . . . . 11 ⊢ (𝑡:ω–1-1→V → ω ∈ V)
28	27	ad2antrl 734	. . . . . . . . . 10 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → ω ∈ V)
29	23, 28	elmapd 8778	. . . . . . . . 9 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↔ 𝑡:ω⟶𝒫 𝐺))
30	21, 29	mpbird 258	. . . . . . . 8 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝑡 ∈ (𝒫 𝐺 ↑m ω))
31		f1f 6724	. . . . . . . . . 10 ⊢ (𝑍:ω–1-1→V → 𝑍:ω⟶V)
32	8, 31	syl 17	. . . . . . . . 9 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝑍:ω⟶V)
33	32, 28	fexd 7172	. . . . . . . 8 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → 𝑍 ∈ V)
34		eqid 2739	. . . . . . . . 9 ⊢ (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)
35	34	fvmpt2 6948	. . . . . . . 8 ⊢ ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ∧ 𝑍 ∈ V) → ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = 𝑍)
36	30, 33, 35	syl2anc 590	. . . . . . 7 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = 𝑍)
37		f1eq1 6719	. . . . . . . 8 ⊢ (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = 𝑍 → (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ↔ 𝑍:ω–1-1→V))
38		rneq 5879	. . . . . . . . . 10 ⊢ (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = 𝑍 → ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = ran 𝑍)
39	38	unieqd 4852	. . . . . . . . 9 ⊢ (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = 𝑍 → ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = ∪ ran 𝑍)
40	39	psseq1d 4027	. . . . . . . 8 ⊢ (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = 𝑍 → (∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡 ↔ ∪ ran 𝑍 ⊊ ∪ ran 𝑡))
41	37, 40	anbi12d 638	. . . . . . 7 ⊢ (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) = 𝑍 → ((((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡) ↔ (𝑍:ω–1-1→V ∧ ∪ ran 𝑍 ⊊ ∪ ran 𝑡)))
42	36, 41	syl 17	. . . . . 6 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → ((((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡) ↔ (𝑍:ω–1-1→V ∧ ∪ ran 𝑍 ⊊ ∪ ran 𝑡)))
43	8, 13, 42	mpbir2and 719	. . . . 5 ⊢ ((𝐺 ∈ 𝐹 ∧ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)) → (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡))
44	43	ex 413	. . . 4 ⊢ (𝐺 ∈ 𝐹 → ((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡)))
45	44	alrimiv 1934	. . 3 ⊢ (𝐺 ∈ 𝐹 → ∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡)))
46		ovex 7390	. . . . 5 ⊢ (𝒫 𝐺 ↑m ω) ∈ V
47	46	mptex 7168	. . . 4 ⊢ (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) ∈ V
48		nfmpt1 5172	. . . . . 6 ⊢ Ⅎ𝑡(𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)
49	48	nfeq2 2918	. . . . 5 ⊢ Ⅎ𝑡 𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)
50		fveq1 6827	. . . . . . . 8 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → (𝑓‘𝑡) = ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡))
51		f1eq1 6719	. . . . . . . 8 ⊢ ((𝑓‘𝑡) = ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) → ((𝑓‘𝑡):ω–1-1→V ↔ ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V))
52	50, 51	syl 17	. . . . . . 7 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → ((𝑓‘𝑡):ω–1-1→V ↔ ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V))
53	50	rneqd 5881	. . . . . . . . 9 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → ran (𝑓‘𝑡) = ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡))
54	53	unieqd 4852	. . . . . . . 8 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → ∪ ran (𝑓‘𝑡) = ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡))
55	54	psseq1d 4027	. . . . . . 7 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → (∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡 ↔ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡))
56	52, 55	anbi12d 638	. . . . . 6 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → (((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡) ↔ (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡)))
57	56	imbi2d 341	. . . . 5 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → (((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡)) ↔ ((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡))))
58	49, 57	albid 2234	. . . 4 ⊢ (𝑓 = (𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍) → (∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡)) ↔ ∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡))))
59	47, 58	spcev 3544	. . 3 ⊢ (∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → (((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡):ω–1-1→V ∧ ∪ ran ((𝑡 ∈ (𝒫 𝐺 ↑m ω) ↦ 𝑍)‘𝑡) ⊊ ∪ ran 𝑡)) → ∃𝑓∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡)))
60	45, 59	syl 17	. 2 ⊢ (𝐺 ∈ 𝐹 → ∃𝑓∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡)))
61		f1eq1 6719	. . . . . 6 ⊢ (𝑏 = 𝑡 → (𝑏:ω–1-1→V ↔ 𝑡:ω–1-1→V))
62		rneq 5879	. . . . . . . 8 ⊢ (𝑏 = 𝑡 → ran 𝑏 = ran 𝑡)
63	62	unieqd 4852	. . . . . . 7 ⊢ (𝑏 = 𝑡 → ∪ ran 𝑏 = ∪ ran 𝑡)
64	63	sseq1d 3946	. . . . . 6 ⊢ (𝑏 = 𝑡 → (∪ ran 𝑏 ⊆ 𝐺 ↔ ∪ ran 𝑡 ⊆ 𝐺))
65	61, 64	anbi12d 638	. . . . 5 ⊢ (𝑏 = 𝑡 → ((𝑏:ω–1-1→V ∧ ∪ ran 𝑏 ⊆ 𝐺) ↔ (𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺)))
66		fveq2 6828	. . . . . . 7 ⊢ (𝑏 = 𝑡 → (𝑓‘𝑏) = (𝑓‘𝑡))
67		f1eq1 6719	. . . . . . 7 ⊢ ((𝑓‘𝑏) = (𝑓‘𝑡) → ((𝑓‘𝑏):ω–1-1→V ↔ (𝑓‘𝑡):ω–1-1→V))
68	66, 67	syl 17	. . . . . 6 ⊢ (𝑏 = 𝑡 → ((𝑓‘𝑏):ω–1-1→V ↔ (𝑓‘𝑡):ω–1-1→V))
69	66	rneqd 5881	. . . . . . . 8 ⊢ (𝑏 = 𝑡 → ran (𝑓‘𝑏) = ran (𝑓‘𝑡))
70	69	unieqd 4852	. . . . . . 7 ⊢ (𝑏 = 𝑡 → ∪ ran (𝑓‘𝑏) = ∪ ran (𝑓‘𝑡))
71	70, 63	psseq12d 4029	. . . . . 6 ⊢ (𝑏 = 𝑡 → (∪ ran (𝑓‘𝑏) ⊊ ∪ ran 𝑏 ↔ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡))
72	68, 71	anbi12d 638	. . . . 5 ⊢ (𝑏 = 𝑡 → (((𝑓‘𝑏):ω–1-1→V ∧ ∪ ran (𝑓‘𝑏) ⊊ ∪ ran 𝑏) ↔ ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡)))
73	65, 72	imbi12d 345	. . . 4 ⊢ (𝑏 = 𝑡 → (((𝑏:ω–1-1→V ∧ ∪ ran 𝑏 ⊆ 𝐺) → ((𝑓‘𝑏):ω–1-1→V ∧ ∪ ran (𝑓‘𝑏) ⊊ ∪ ran 𝑏)) ↔ ((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡))))
74	73	cbvalvw 2043	. . 3 ⊢ (∀𝑏((𝑏:ω–1-1→V ∧ ∪ ran 𝑏 ⊆ 𝐺) → ((𝑓‘𝑏):ω–1-1→V ∧ ∪ ran (𝑓‘𝑏) ⊊ ∪ ran 𝑏)) ↔ ∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡)))
75	74	exbii 1855	. 2 ⊢ (∃𝑓∀𝑏((𝑏:ω–1-1→V ∧ ∪ ran 𝑏 ⊆ 𝐺) → ((𝑓‘𝑏):ω–1-1→V ∧ ∪ ran (𝑓‘𝑏) ⊊ ∪ ran 𝑏)) ↔ ∃𝑓∀𝑡((𝑡:ω–1-1→V ∧ ∪ ran 𝑡 ⊆ 𝐺) → ((𝑓‘𝑡):ω–1-1→V ∧ ∪ ran (𝑓‘𝑡) ⊊ ∪ ran 𝑡)))
76	60, 75	sylibr 235	1 ⊢ (𝐺 ∈ 𝐹 → ∃𝑓∀𝑏((𝑏:ω–1-1→V ∧ ∪ ran 𝑏 ⊆ 𝐺) → ((𝑓‘𝑏):ω–1-1→V ∧ ∪ ran (𝑓‘𝑏) ⊊ ∪ ran 𝑏)))

Syntax hints:   → wi 4   ↔ wb 207   ∧ wa 396  ∀wal 1545   = wceq 1547  ∃wex 1786   ∈ wcel 2119  {cab 2717  ∀wral 3053  {crab 3391  Vcvv 3431   ∖ cdif 3880   ∩ cin 3882   ⊆ wss 3883   ⊊ wpss 3884  ∅c0 4262  ifcif 4455  𝒫 cpw 4530  ∪ cuni 4839  ∩ cint 4878   class class class wbr 5073   ↦ cmpt 5154  ran crn 5620   ∘ ccom 5623  suc csuc 6313   Fn wfn 6481  ⟶wf 6482  –1-1→wf1 6483  ‘cfv 6486  ℩crio 7313  (class class class)co 7357   ∈ cmpo 7359  ωcom 7807  seq_ωcseqom 8377   ↑_m cmap 8764   ≈ cen 8881  Fincfn 8884

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-10 2152  ax-11 2168  ax-12 2189  ax-ext 2711  ax-rep 5200  ax-sep 5219  ax-nul 5229  ax-pow 5295  ax-pr 5363  ax-un 7679

This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3or 1093  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-nf 1791  df-sb 2074  df-mo 2543  df-eu 2573  df-clab 2718  df-cleq 2731  df-clel 2814  df-nfc 2888  df-ne 2935  df-ral 3054  df-rex 3064  df-rmo 3344  df-reu 3345  df-rab 3392  df-v 3433  df-sbc 3724  df-csb 3832  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3903  df-nul 4263  df-if 4456  df-pw 4532  df-sn 4557  df-pr 4559  df-op 4563  df-uni 4840  df-int 4879  df-iun 4924  df-br 5074  df-opab 5136  df-mpt 5155  df-tr 5181  df-id 5514  df-eprel 5519  df-po 5527  df-so 5528  df-fr 5572  df-se 5573  df-we 5574  df-xp 5625  df-rel 5626  df-cnv 5627  df-co 5628  df-dm 5629  df-rn 5630  df-res 5631  df-ima 5632  df-pred 6253  df-ord 6314  df-on 6315  df-lim 6316  df-suc 6317  df-iota 6442  df-fun 6488  df-fn 6489  df-f 6490  df-f1 6491  df-fo 6492  df-f1o 6493  df-fv 6494  df-isom 6495  df-riota 7314  df-ov 7360  df-oprab 7361  df-mpo 7362  df-om 7808  df-1st 7932  df-2nd 7933  df-frecs 8222  df-wrecs 8253  df-recs 8302  df-rdg 8340  df-seqom 8378  df-1o 8396  df-er 8634  df-map 8766  df-en 8885  df-dom 8886  df-sdom 8887  df-fin 8888  df-card 9855

This theorem is referenced by:  fin23lem33  10259