Theorem canthp1lem2 9763

Description: Lemma for canthp1 9764. (Contributed by Mario Carneiro, 18-May-2015.)

Hypotheses

Ref	Expression
canthp1lem2.1	⊢ (𝜑 → 1𝑜 ≺ 𝐴)
canthp1lem2.2	⊢ (𝜑 → 𝐹:𝒫 𝐴–1-1-onto→(𝐴 +𝑐 1𝑜))
canthp1lem2.3	⊢ (𝜑 → 𝐺:((𝐴 +𝑐 1𝑜) ∖ {(𝐹‘𝐴)})–1-1-onto→𝐴)
canthp1lem2.4	⊢ 𝐻 = ((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))
canthp1lem2.5	⊢ 𝑊 = {⟨𝑥, 𝑟⟩ ∣ ((𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥)) ∧ (𝑟 We 𝑥 ∧ ∀𝑦 ∈ 𝑥 (𝐻‘(◡𝑟 “ {𝑦})) = 𝑦))}
canthp1lem2.6	⊢ 𝐵 = ∪ dom 𝑊

Assertion

Ref	Expression
canthp1lem2	⊢ ¬ 𝜑

Distinct variable groups:   𝑥,𝑟,𝑦,𝐴   𝐵,𝑟,𝑥,𝑦   𝐻,𝑟,𝑥,𝑦   𝜑,𝑟,𝑥,𝑦   𝑊,𝑟,𝑥,𝑦

Allowed substitution hints:   𝐹(𝑥,𝑦,𝑟)   𝐺(𝑥,𝑦,𝑟)

Proof of Theorem canthp1lem2

Step	Hyp	Ref	Expression
1		canthp1lem2.1	. . . . . 6 ⊢ (𝜑 → 1𝑜 ≺ 𝐴)
2		relsdom 8202	. . . . . . 7 ⊢ Rel ≺
3	2	brrelex2i 5366	. . . . . 6 ⊢ (1𝑜 ≺ 𝐴 → 𝐴 ∈ V)
4	1, 3	syl 17	. . . . 5 ⊢ (𝜑 → 𝐴 ∈ V)
5	4	pwexd 5056	. . . 4 ⊢ (𝜑 → 𝒫 𝐴 ∈ V)
6		canthp1lem2.2	. . . 4 ⊢ (𝜑 → 𝐹:𝒫 𝐴–1-1-onto→(𝐴 +𝑐 1𝑜))
7		f1oeng 8214	. . . 4 ⊢ ((𝒫 𝐴 ∈ V ∧ 𝐹:𝒫 𝐴–1-1-onto→(𝐴 +𝑐 1𝑜)) → 𝒫 𝐴 ≈ (𝐴 +𝑐 1𝑜))
8	5, 6, 7	syl2anc 575	. . 3 ⊢ (𝜑 → 𝒫 𝐴 ≈ (𝐴 +𝑐 1𝑜))
9		ensym 8244	. . 3 ⊢ (𝒫 𝐴 ≈ (𝐴 +𝑐 1𝑜) → (𝐴 +𝑐 1𝑜) ≈ 𝒫 𝐴)
10	8, 9	syl 17	. 2 ⊢ (𝜑 → (𝐴 +𝑐 1𝑜) ≈ 𝒫 𝐴)
11		canth2g 8356	. . . . . . . . . . 11 ⊢ (𝐴 ∈ V → 𝐴 ≺ 𝒫 𝐴)
12	4, 11	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → 𝐴 ≺ 𝒫 𝐴)
13		sdomen2 8347	. . . . . . . . . . 11 ⊢ (𝒫 𝐴 ≈ (𝐴 +𝑐 1𝑜) → (𝐴 ≺ 𝒫 𝐴 ↔ 𝐴 ≺ (𝐴 +𝑐 1𝑜)))
14	8, 13	syl 17	. . . . . . . . . 10 ⊢ (𝜑 → (𝐴 ≺ 𝒫 𝐴 ↔ 𝐴 ≺ (𝐴 +𝑐 1𝑜)))
15	12, 14	mpbid 223	. . . . . . . . 9 ⊢ (𝜑 → 𝐴 ≺ (𝐴 +𝑐 1𝑜))
16		sdomnen 8224	. . . . . . . . 9 ⊢ (𝐴 ≺ (𝐴 +𝑐 1𝑜) → ¬ 𝐴 ≈ (𝐴 +𝑐 1𝑜))
17	15, 16	syl 17	. . . . . . . 8 ⊢ (𝜑 → ¬ 𝐴 ≈ (𝐴 +𝑐 1𝑜))
18		omelon 8793	. . . . . . . . . . . 12 ⊢ ω ∈ On
19		onenon 9061	. . . . . . . . . . . 12 ⊢ (ω ∈ On → ω ∈ dom card)
20	18, 19	ax-mp 5	. . . . . . . . . . 11 ⊢ ω ∈ dom card
21		canthp1lem2.3	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝜑 → 𝐺:((𝐴 +𝑐 1𝑜) ∖ {(𝐹‘𝐴)})–1-1-onto→𝐴)
22		dff1o3 6362	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝐹:𝒫 𝐴–1-1-onto→(𝐴 +𝑐 1𝑜) ↔ (𝐹:𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜) ∧ Fun ◡𝐹))
23	22	simprbi 486	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝐹:𝒫 𝐴–1-1-onto→(𝐴 +𝑐 1𝑜) → Fun ◡𝐹)
24	6, 23	syl 17	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → Fun ◡𝐹)
25		f1ofo 6363	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝐹:𝒫 𝐴–1-1-onto→(𝐴 +𝑐 1𝑜) → 𝐹:𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜))
26	6, 25	syl 17	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → 𝐹:𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜))
27		f1ofn 6357	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝐹:𝒫 𝐴–1-1-onto→(𝐴 +𝑐 1𝑜) → 𝐹 Fn 𝒫 𝐴)
28		fnresdm 6214	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝐹 Fn 𝒫 𝐴 → (𝐹 ↾ 𝒫 𝐴) = 𝐹)
29		foeq1 6330	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝐹 ↾ 𝒫 𝐴) = 𝐹 → ((𝐹 ↾ 𝒫 𝐴):𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜) ↔ 𝐹:𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜)))
30	6, 27, 28, 29	4syl 19	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → ((𝐹 ↾ 𝒫 𝐴):𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜) ↔ 𝐹:𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜)))
31	26, 30	mpbird 248	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → (𝐹 ↾ 𝒫 𝐴):𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜))
32		fvex 6424	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝐹‘𝐴) ∈ V
33		f1osng 6396	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝐴 ∈ V ∧ (𝐹‘𝐴) ∈ V) → {⟨𝐴, (𝐹‘𝐴)⟩}:{𝐴}–1-1-onto→{(𝐹‘𝐴)})
34	4, 32, 33	sylancl 576	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → {⟨𝐴, (𝐹‘𝐴)⟩}:{𝐴}–1-1-onto→{(𝐹‘𝐴)})
35	6, 27	syl 17	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → 𝐹 Fn 𝒫 𝐴)
36		pwidg 4373	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝐴 ∈ V → 𝐴 ∈ 𝒫 𝐴)
37	4, 36	syl 17	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → 𝐴 ∈ 𝒫 𝐴)
38		fnressn 6652	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝐹 Fn 𝒫 𝐴 ∧ 𝐴 ∈ 𝒫 𝐴) → (𝐹 ↾ {𝐴}) = {⟨𝐴, (𝐹‘𝐴)⟩})
39	35, 37, 38	syl2anc 575	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → (𝐹 ↾ {𝐴}) = {⟨𝐴, (𝐹‘𝐴)⟩})
40		f1oeq1 6346	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝐹 ↾ {𝐴}) = {⟨𝐴, (𝐹‘𝐴)⟩} → ((𝐹 ↾ {𝐴}):{𝐴}–1-1-onto→{(𝐹‘𝐴)} ↔ {⟨𝐴, (𝐹‘𝐴)⟩}:{𝐴}–1-1-onto→{(𝐹‘𝐴)}))
41	39, 40	syl 17	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → ((𝐹 ↾ {𝐴}):{𝐴}–1-1-onto→{(𝐹‘𝐴)} ↔ {⟨𝐴, (𝐹‘𝐴)⟩}:{𝐴}–1-1-onto→{(𝐹‘𝐴)}))
42	34, 41	mpbird 248	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (𝐹 ↾ {𝐴}):{𝐴}–1-1-onto→{(𝐹‘𝐴)})
43		f1ofo 6363	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝐹 ↾ {𝐴}):{𝐴}–1-1-onto→{(𝐹‘𝐴)} → (𝐹 ↾ {𝐴}):{𝐴}–onto→{(𝐹‘𝐴)})
44	42, 43	syl 17	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → (𝐹 ↾ {𝐴}):{𝐴}–onto→{(𝐹‘𝐴)})
45		resdif 6376	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((Fun ◡𝐹 ∧ (𝐹 ↾ 𝒫 𝐴):𝒫 𝐴–onto→(𝐴 +𝑐 1𝑜) ∧ (𝐹 ↾ {𝐴}):{𝐴}–onto→{(𝐹‘𝐴)}) → (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→((𝐴 +𝑐 1𝑜) ∖ {(𝐹‘𝐴)}))
46	24, 31, 44, 45	syl3anc 1483	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝜑 → (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→((𝐴 +𝑐 1𝑜) ∖ {(𝐹‘𝐴)}))
47		f1oco 6378	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐺:((𝐴 +𝑐 1𝑜) ∖ {(𝐹‘𝐴)})–1-1-onto→𝐴 ∧ (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→((𝐴 +𝑐 1𝑜) ∖ {(𝐹‘𝐴)})) → (𝐺 ∘ (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴}))):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴)
48	21, 46, 47	syl2anc 575	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝜑 → (𝐺 ∘ (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴}))):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴)
49		resco 5860	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) = (𝐺 ∘ (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴})))
50		f1oeq1 6346	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) = (𝐺 ∘ (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴}))) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴 ↔ (𝐺 ∘ (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴}))):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴))
51	49, 50	ax-mp 5	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴 ↔ (𝐺 ∘ (𝐹 ↾ (𝒫 𝐴 ∖ {𝐴}))):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴)
52	48, 51	sylibr 225	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → ((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴)
53		f1of 6356	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴 → ((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})⟶𝐴)
54	52, 53	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → ((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})⟶𝐴)
55		0elpw 5033	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ∅ ∈ 𝒫 𝐴
56	55	a1i 11	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) ∧ 𝑥 = 𝐴) → ∅ ∈ 𝒫 𝐴)
57		sdom0 8334	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ¬ 1𝑜 ≺ ∅
58		breq2 4855	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (∅ = 𝐴 → (1𝑜 ≺ ∅ ↔ 1𝑜 ≺ 𝐴))
59	57, 58	mtbii 317	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (∅ = 𝐴 → ¬ 1𝑜 ≺ 𝐴)
60	59	necon2ai 3014	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (1𝑜 ≺ 𝐴 → ∅ ≠ 𝐴)
61	1, 60	syl 17	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → ∅ ≠ 𝐴)
62	61	ad2antrr 708	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) ∧ 𝑥 = 𝐴) → ∅ ≠ 𝐴)
63		eldifsn 4515	. . . . . . . . . . . . . . . . . . . 20 ⊢ (∅ ∈ (𝒫 𝐴 ∖ {𝐴}) ↔ (∅ ∈ 𝒫 𝐴 ∧ ∅ ≠ 𝐴))
64	56, 62, 63	sylanbrc 574	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) ∧ 𝑥 = 𝐴) → ∅ ∈ (𝒫 𝐴 ∖ {𝐴}))
65		simplr 776	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) ∧ ¬ 𝑥 = 𝐴) → 𝑥 ∈ 𝒫 𝐴)
66		simpr 473	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) ∧ ¬ 𝑥 = 𝐴) → ¬ 𝑥 = 𝐴)
67	66	neqned 2992	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) ∧ ¬ 𝑥 = 𝐴) → 𝑥 ≠ 𝐴)
68		eldifsn 4515	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑥 ∈ (𝒫 𝐴 ∖ {𝐴}) ↔ (𝑥 ∈ 𝒫 𝐴 ∧ 𝑥 ≠ 𝐴))
69	65, 67, 68	sylanbrc 574	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) ∧ ¬ 𝑥 = 𝐴) → 𝑥 ∈ (𝒫 𝐴 ∖ {𝐴}))
70	64, 69	ifclda 4320	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝒫 𝐴) → if(𝑥 = 𝐴, ∅, 𝑥) ∈ (𝒫 𝐴 ∖ {𝐴}))
71	70	fmpttd 6610	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)):𝒫 𝐴⟶(𝒫 𝐴 ∖ {𝐴}))
72		fco 6276	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})⟶𝐴 ∧ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)):𝒫 𝐴⟶(𝒫 𝐴 ∖ {𝐴})) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))):𝒫 𝐴⟶𝐴)
73	54, 71, 72	syl2anc 575	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))):𝒫 𝐴⟶𝐴)
74	71	frnd 6266	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝜑 → ran (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)) ⊆ (𝒫 𝐴 ∖ {𝐴}))
75		cores 5859	. . . . . . . . . . . . . . . . . . 19 ⊢ (ran (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)) ⊆ (𝒫 𝐴 ∖ {𝐴}) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))) = ((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))))
76	74, 75	syl 17	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))) = ((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))))
77		canthp1lem2.4	. . . . . . . . . . . . . . . . . 18 ⊢ 𝐻 = ((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))
78	76, 77	syl6eqr 2865	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))) = 𝐻)
79	78	feq1d 6244	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → ((((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))):𝒫 𝐴⟶𝐴 ↔ 𝐻:𝒫 𝐴⟶𝐴))
80	73, 79	mpbid 223	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → 𝐻:𝒫 𝐴⟶𝐴)
81		inss1 4036	. . . . . . . . . . . . . . . 16 ⊢ (𝒫 𝐴 ∩ dom card) ⊆ 𝒫 𝐴
82	81	a1i 11	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝒫 𝐴 ∩ dom card) ⊆ 𝒫 𝐴)
83		canthp1lem2.5	. . . . . . . . . . . . . . . 16 ⊢ 𝑊 = {⟨𝑥, 𝑟⟩ ∣ ((𝑥 ⊆ 𝐴 ∧ 𝑟 ⊆ (𝑥 × 𝑥)) ∧ (𝑟 We 𝑥 ∧ ∀𝑦 ∈ 𝑥 (𝐻‘(◡𝑟 “ {𝑦})) = 𝑦))}
84		canthp1lem2.6	. . . . . . . . . . . . . . . 16 ⊢ 𝐵 = ∪ dom 𝑊
85		eqid 2813	. . . . . . . . . . . . . . . 16 ⊢ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})
86	83, 84, 85	canth4 9757	. . . . . . . . . . . . . . 15 ⊢ ((𝐴 ∈ V ∧ 𝐻:𝒫 𝐴⟶𝐴 ∧ (𝒫 𝐴 ∩ dom card) ⊆ 𝒫 𝐴) → (𝐵 ⊆ 𝐴 ∧ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊊ 𝐵 ∧ (𝐻‘𝐵) = (𝐻‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))))
87	4, 80, 82, 86	syl3anc 1483	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (𝐵 ⊆ 𝐴 ∧ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊊ 𝐵 ∧ (𝐻‘𝐵) = (𝐻‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))))
88	87	simp1d 1165	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐵 ⊆ 𝐴)
89	87	simp2d 1166	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊊ 𝐵)
90	89	pssned 3910	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ≠ 𝐵)
91	90	necomd 3040	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → 𝐵 ≠ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))
92	87	simp3d 1167	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → (𝐻‘𝐵) = (𝐻‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
93	77	fveq1i 6412	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝐻‘𝐵) = (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘𝐵)
94	77	fveq1i 6412	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝐻‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))
95	92, 93, 94	3eqtr3g 2870	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘𝐵) = (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
96		elpw2g 5026	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝐴 ∈ V → (𝐵 ∈ 𝒫 𝐴 ↔ 𝐵 ⊆ 𝐴))
97	4, 96	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → (𝐵 ∈ 𝒫 𝐴 ↔ 𝐵 ⊆ 𝐴))
98	88, 97	mpbird 248	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → 𝐵 ∈ 𝒫 𝐴)
99		fvco3 6499	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)):𝒫 𝐴⟶(𝒫 𝐴 ∖ {𝐴}) ∧ 𝐵 ∈ 𝒫 𝐴) → (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘𝐵) = ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵)))
100	71, 98, 99	syl2anc 575	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘𝐵) = ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵)))
101	89	pssssd 3909	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊆ 𝐵)
102	101, 88	sstrd 3815	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊆ 𝐴)
103		elpw2g 5026	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝐴 ∈ V → ((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴 ↔ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊆ 𝐴))
104	4, 103	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → ((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴 ↔ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊆ 𝐴))
105	102, 104	mpbird 248	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴)
106		fvco3 6499	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)):𝒫 𝐴⟶(𝒫 𝐴 ∖ {𝐴}) ∧ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴) → (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))))
107	71, 105, 106	syl2anc 575	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (((𝐺 ∘ 𝐹) ∘ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))))
108	95, 100, 107	3eqtr3d 2855	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵)) = ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))))
109	108	adantr 468	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵)) = ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))))
110		ifcl 4330	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((∅ ∈ 𝒫 𝐴 ∧ 𝐵 ∈ 𝒫 𝐴) → if(𝐵 = 𝐴, ∅, 𝐵) ∈ 𝒫 𝐴)
111	55, 98, 110	sylancr 577	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → if(𝐵 = 𝐴, ∅, 𝐵) ∈ 𝒫 𝐴)
112		eqeq1 2817	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑥 = 𝐵 → (𝑥 = 𝐴 ↔ 𝐵 = 𝐴))
113		id 22	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑥 = 𝐵 → 𝑥 = 𝐵)
114	112, 113	ifbieq2d 4311	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑥 = 𝐵 → if(𝑥 = 𝐴, ∅, 𝑥) = if(𝐵 = 𝐴, ∅, 𝐵))
115		eqid 2813	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥)) = (𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))
116	114, 115	fvmptg 6504	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝐵 ∈ 𝒫 𝐴 ∧ if(𝐵 = 𝐴, ∅, 𝐵) ∈ 𝒫 𝐴) → ((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵) = if(𝐵 = 𝐴, ∅, 𝐵))
117	98, 111, 116	syl2anc 575	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → ((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵) = if(𝐵 = 𝐴, ∅, 𝐵))
118		pssne 3908	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝐵 ⊊ 𝐴 → 𝐵 ≠ 𝐴)
119	118	neneqd 2990	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝐵 ⊊ 𝐴 → ¬ 𝐵 = 𝐴)
120	119	iffalsed 4297	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝐵 ⊊ 𝐴 → if(𝐵 = 𝐴, ∅, 𝐵) = 𝐵)
121	117, 120	sylan9eq 2867	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵) = 𝐵)
122	121	fveq2d 6415	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘𝐵)) = ((𝐺 ∘ 𝐹)‘𝐵))
123		ifcl 4330	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((∅ ∈ 𝒫 𝐴 ∧ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴) → if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) ∈ 𝒫 𝐴)
124	55, 105, 123	sylancr 577	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) ∈ 𝒫 𝐴)
125		eqeq1 2817	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝑥 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) → (𝑥 = 𝐴 ↔ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴))
126		id 22	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝑥 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) → 𝑥 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))
127	125, 126	ifbieq2d 4311	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑥 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) → if(𝑥 = 𝐴, ∅, 𝑥) = if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
128	127, 115	fvmptg 6504	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴 ∧ if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) ∈ 𝒫 𝐴) → ((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
129	105, 124, 128	syl2anc 575	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → ((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
130	129	adantr 468	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
131		sspsstr 3917	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊆ 𝐵 ∧ 𝐵 ⊊ 𝐴) → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊊ 𝐴)
132	101, 131	sylan 571	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ⊊ 𝐴)
133	132	pssned 3910	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ≠ 𝐴)
134	133	neneqd 2990	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ¬ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴)
135	134	iffalsed 4297	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → if((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) = 𝐴, ∅, (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))
136	130, 135	eqtrd 2847	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))
137	136	fveq2d 6415	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝐺 ∘ 𝐹)‘((𝑥 ∈ 𝒫 𝐴 ↦ if(𝑥 = 𝐴, ∅, 𝑥))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))) = ((𝐺 ∘ 𝐹)‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
138	109, 122, 137	3eqtr3d 2855	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝐺 ∘ 𝐹)‘𝐵) = ((𝐺 ∘ 𝐹)‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
139	98, 118	anim12i 602	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (𝐵 ∈ 𝒫 𝐴 ∧ 𝐵 ≠ 𝐴))
140		eldifsn 4515	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝐵 ∈ (𝒫 𝐴 ∖ {𝐴}) ↔ (𝐵 ∈ 𝒫 𝐴 ∧ 𝐵 ≠ 𝐴))
141	139, 140	sylibr 225	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → 𝐵 ∈ (𝒫 𝐴 ∖ {𝐴}))
142		fvres 6430	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝐵 ∈ (𝒫 𝐴 ∖ {𝐴}) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘𝐵) = ((𝐺 ∘ 𝐹)‘𝐵))
143	141, 142	syl 17	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘𝐵) = ((𝐺 ∘ 𝐹)‘𝐵))
144	105	adantr 468	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴)
145		eldifsn 4515	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ (𝒫 𝐴 ∖ {𝐴}) ↔ ((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ 𝒫 𝐴 ∧ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ≠ 𝐴))
146	144, 133, 145	sylanbrc 574	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ (𝒫 𝐴 ∖ {𝐴}))
147		fvres 6430	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ (𝒫 𝐴 ∖ {𝐴}) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = ((𝐺 ∘ 𝐹)‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
148	146, 147	syl 17	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) = ((𝐺 ∘ 𝐹)‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
149	138, 143, 148	3eqtr4d 2857	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘𝐵) = (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
150		f1of1 6355	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1-onto→𝐴 → ((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1→𝐴)
151	52, 150	syl 17	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝜑 → ((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1→𝐴)
152	151	adantr 468	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1→𝐴)
153		f1fveq 6746	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴})):(𝒫 𝐴 ∖ {𝐴})–1-1→𝐴 ∧ (𝐵 ∈ (𝒫 𝐴 ∖ {𝐴}) ∧ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) ∈ (𝒫 𝐴 ∖ {𝐴}))) → ((((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘𝐵) = (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) ↔ 𝐵 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
154	152, 141, 146, 153	syl12anc 856	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → ((((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘𝐵) = (((𝐺 ∘ 𝐹) ↾ (𝒫 𝐴 ∖ {𝐴}))‘(◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})) ↔ 𝐵 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
155	149, 154	mpbid 223	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝐵 ⊊ 𝐴) → 𝐵 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}))
156	155	ex 399	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (𝐵 ⊊ 𝐴 → 𝐵 = (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)})))
157	156	necon3ad 2998	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝐵 ≠ (◡(𝑊‘𝐵) “ {(𝐻‘𝐵)}) → ¬ 𝐵 ⊊ 𝐴))
158	91, 157	mpd 15	. . . . . . . . . . . . . 14 ⊢ (𝜑 → ¬ 𝐵 ⊊ 𝐴)
159		npss 3922	. . . . . . . . . . . . . 14 ⊢ (¬ 𝐵 ⊊ 𝐴 ↔ (𝐵 ⊆ 𝐴 → 𝐵 = 𝐴))
160	158, 159	sylib 209	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝐵 ⊆ 𝐴 → 𝐵 = 𝐴))
161	88, 160	mpd 15	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐵 = 𝐴)
162		eqid 2813	. . . . . . . . . . . . . . . . . . . 20 ⊢ 𝐵 = 𝐵
163		eqid 2813	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑊‘𝐵) = (𝑊‘𝐵)
164	162, 163	pm3.2i 458	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝐵 = 𝐵 ∧ (𝑊‘𝐵) = (𝑊‘𝐵))
165	81	sseli 3801	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑥 ∈ (𝒫 𝐴 ∩ dom card) → 𝑥 ∈ 𝒫 𝐴)
166		ffvelrn 6582	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝐻:𝒫 𝐴⟶𝐴 ∧ 𝑥 ∈ 𝒫 𝐴) → (𝐻‘𝑥) ∈ 𝐴)
167	80, 165, 166	syl2an 585	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑥 ∈ (𝒫 𝐴 ∩ dom card)) → (𝐻‘𝑥) ∈ 𝐴)
168	83, 4, 167, 84	fpwwe 9756	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝜑 → ((𝐵𝑊(𝑊‘𝐵) ∧ (𝐻‘𝐵) ∈ 𝐵) ↔ (𝐵 = 𝐵 ∧ (𝑊‘𝐵) = (𝑊‘𝐵))))
169	164, 168	mpbiri 249	. . . . . . . . . . . . . . . . . 18 ⊢ (𝜑 → (𝐵𝑊(𝑊‘𝐵) ∧ (𝐻‘𝐵) ∈ 𝐵))
170	169	simpld 484	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → 𝐵𝑊(𝑊‘𝐵))
171	83, 4	fpwwelem 9755	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → (𝐵𝑊(𝑊‘𝐵) ↔ ((𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵)) ∧ ((𝑊‘𝐵) We 𝐵 ∧ ∀𝑦 ∈ 𝐵 (𝐻‘(◡(𝑊‘𝐵) “ {𝑦})) = 𝑦))))
172	170, 171	mpbid 223	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → ((𝐵 ⊆ 𝐴 ∧ (𝑊‘𝐵) ⊆ (𝐵 × 𝐵)) ∧ ((𝑊‘𝐵) We 𝐵 ∧ ∀𝑦 ∈ 𝐵 (𝐻‘(◡(𝑊‘𝐵) “ {𝑦})) = 𝑦)))
173	172	simprd 485	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → ((𝑊‘𝐵) We 𝐵 ∧ ∀𝑦 ∈ 𝐵 (𝐻‘(◡(𝑊‘𝐵) “ {𝑦})) = 𝑦))
174	173	simpld 484	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (𝑊‘𝐵) We 𝐵)
175		fvex 6424	. . . . . . . . . . . . . . 15 ⊢ (𝑊‘𝐵) ∈ V
176		weeq1 5306	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = (𝑊‘𝐵) → (𝑟 We 𝐵 ↔ (𝑊‘𝐵) We 𝐵))
177	175, 176	spcev 3500	. . . . . . . . . . . . . 14 ⊢ ((𝑊‘𝐵) We 𝐵 → ∃𝑟 𝑟 We 𝐵)
178	174, 177	syl 17	. . . . . . . . . . . . 13 ⊢ (𝜑 → ∃𝑟 𝑟 We 𝐵)
179		ween 9144	. . . . . . . . . . . . 13 ⊢ (𝐵 ∈ dom card ↔ ∃𝑟 𝑟 We 𝐵)
180	178, 179	sylibr 225	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐵 ∈ dom card)
181	161, 180	eqeltrrd 2893	. . . . . . . . . . 11 ⊢ (𝜑 → 𝐴 ∈ dom card)
182		domtri2 9101	. . . . . . . . . . 11 ⊢ ((ω ∈ dom card ∧ 𝐴 ∈ dom card) → (ω ≼ 𝐴 ↔ ¬ 𝐴 ≺ ω))
183	20, 181, 182	sylancr 577	. . . . . . . . . 10 ⊢ (𝜑 → (ω ≼ 𝐴 ↔ ¬ 𝐴 ≺ ω))
184		infcda1 9303	. . . . . . . . . 10 ⊢ (ω ≼ 𝐴 → (𝐴 +𝑐 1𝑜) ≈ 𝐴)
185	183, 184	syl6bir 245	. . . . . . . . 9 ⊢ (𝜑 → (¬ 𝐴 ≺ ω → (𝐴 +𝑐 1𝑜) ≈ 𝐴))
186		ensym 8244	. . . . . . . . 9 ⊢ ((𝐴 +𝑐 1𝑜) ≈ 𝐴 → 𝐴 ≈ (𝐴 +𝑐 1𝑜))
187	185, 186	syl6 35	. . . . . . . 8 ⊢ (𝜑 → (¬ 𝐴 ≺ ω → 𝐴 ≈ (𝐴 +𝑐 1𝑜)))
188	17, 187	mt3d 142	. . . . . . 7 ⊢ (𝜑 → 𝐴 ≺ ω)
189		2onn 7960	. . . . . . . 8 ⊢ 2𝑜 ∈ ω
190		nnsdom 8801	. . . . . . . 8 ⊢ (2𝑜 ∈ ω → 2𝑜 ≺ ω)
191	189, 190	ax-mp 5	. . . . . . 7 ⊢ 2𝑜 ≺ ω
192		cdafi 9300	. . . . . . 7 ⊢ ((𝐴 ≺ ω ∧ 2𝑜 ≺ ω) → (𝐴 +𝑐 2𝑜) ≺ ω)
193	188, 191, 192	sylancl 576	. . . . . 6 ⊢ (𝜑 → (𝐴 +𝑐 2𝑜) ≺ ω)
194		isfinite 8799	. . . . . 6 ⊢ ((𝐴 +𝑐 2𝑜) ∈ Fin ↔ (𝐴 +𝑐 2𝑜) ≺ ω)
195	193, 194	sylibr 225	. . . . 5 ⊢ (𝜑 → (𝐴 +𝑐 2𝑜) ∈ Fin)
196		sssucid 6021	. . . . . . . . . 10 ⊢ 1𝑜 ⊆ suc 1𝑜
197		df-2o 7800	. . . . . . . . . 10 ⊢ 2𝑜 = suc 1𝑜
198	196, 197	sseqtr4i 3842	. . . . . . . . 9 ⊢ 1𝑜 ⊆ 2𝑜
199		xpss1 5336	. . . . . . . . 9 ⊢ (1𝑜 ⊆ 2𝑜 → (1𝑜 × {1𝑜}) ⊆ (2𝑜 × {1𝑜}))
200	198, 199	ax-mp 5	. . . . . . . 8 ⊢ (1𝑜 × {1𝑜}) ⊆ (2𝑜 × {1𝑜})
201		unss2 3990	. . . . . . . 8 ⊢ ((1𝑜 × {1𝑜}) ⊆ (2𝑜 × {1𝑜}) → ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊆ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})))
202	200, 201	mp1i 13	. . . . . . 7 ⊢ (𝜑 → ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊆ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})))
203		ssun2 3983	. . . . . . . . 9 ⊢ (2𝑜 × {1𝑜}) ⊆ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜}))
204		1onn 7959	. . . . . . . . . . . . 13 ⊢ 1𝑜 ∈ ω
205	204	elexi 3414	. . . . . . . . . . . 12 ⊢ 1𝑜 ∈ V
206	205	sucid 6023	. . . . . . . . . . 11 ⊢ 1𝑜 ∈ suc 1𝑜
207	206, 197	eleqtrri 2891	. . . . . . . . . 10 ⊢ 1𝑜 ∈ 2𝑜
208	205	snid 4409	. . . . . . . . . 10 ⊢ 1𝑜 ∈ {1𝑜}
209		opelxpi 5355	. . . . . . . . . 10 ⊢ ((1𝑜 ∈ 2𝑜 ∧ 1𝑜 ∈ {1𝑜}) → ⟨1𝑜, 1𝑜⟩ ∈ (2𝑜 × {1𝑜}))
210	207, 208, 209	mp2an 675	. . . . . . . . 9 ⊢ ⟨1𝑜, 1𝑜⟩ ∈ (2𝑜 × {1𝑜})
211	203, 210	sselii 3802	. . . . . . . 8 ⊢ ⟨1𝑜, 1𝑜⟩ ∈ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜}))
212		1n0 7815	. . . . . . . . . . . 12 ⊢ 1𝑜 ≠ ∅
213	212	neii 2987	. . . . . . . . . . 11 ⊢ ¬ 1𝑜 = ∅
214		opelxp2 5358	. . . . . . . . . . . 12 ⊢ (⟨1𝑜, 1𝑜⟩ ∈ (𝐴 × {∅}) → 1𝑜 ∈ {∅})
215		elsni 4394	. . . . . . . . . . . 12 ⊢ (1𝑜 ∈ {∅} → 1𝑜 = ∅)
216	214, 215	syl 17	. . . . . . . . . . 11 ⊢ (⟨1𝑜, 1𝑜⟩ ∈ (𝐴 × {∅}) → 1𝑜 = ∅)
217	213, 216	mto 188	. . . . . . . . . 10 ⊢ ¬ ⟨1𝑜, 1𝑜⟩ ∈ (𝐴 × {∅})
218		nnord 7306	. . . . . . . . . . . 12 ⊢ (1𝑜 ∈ ω → Ord 1𝑜)
219		ordirr 5961	. . . . . . . . . . . 12 ⊢ (Ord 1𝑜 → ¬ 1𝑜 ∈ 1𝑜)
220	204, 218, 219	mp2b 10	. . . . . . . . . . 11 ⊢ ¬ 1𝑜 ∈ 1𝑜
221		opelxp1 5357	. . . . . . . . . . 11 ⊢ (⟨1𝑜, 1𝑜⟩ ∈ (1𝑜 × {1𝑜}) → 1𝑜 ∈ 1𝑜)
222	220, 221	mto 188	. . . . . . . . . 10 ⊢ ¬ ⟨1𝑜, 1𝑜⟩ ∈ (1𝑜 × {1𝑜})
223	217, 222	pm3.2ni 896	. . . . . . . . 9 ⊢ ¬ (⟨1𝑜, 1𝑜⟩ ∈ (𝐴 × {∅}) ∨ ⟨1𝑜, 1𝑜⟩ ∈ (1𝑜 × {1𝑜}))
224		elun 3959	. . . . . . . . 9 ⊢ (⟨1𝑜, 1𝑜⟩ ∈ ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ↔ (⟨1𝑜, 1𝑜⟩ ∈ (𝐴 × {∅}) ∨ ⟨1𝑜, 1𝑜⟩ ∈ (1𝑜 × {1𝑜})))
225	223, 224	mtbir 314	. . . . . . . 8 ⊢ ¬ ⟨1𝑜, 1𝑜⟩ ∈ ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜}))
226		ssnelpss 3923	. . . . . . . 8 ⊢ (((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊆ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})) → ((⟨1𝑜, 1𝑜⟩ ∈ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})) ∧ ¬ ⟨1𝑜, 1𝑜⟩ ∈ ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜}))) → ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊊ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜}))))
227	211, 225, 226	mp2ani 681	. . . . . . 7 ⊢ (((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊆ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})) → ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊊ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})))
228	202, 227	syl 17	. . . . . 6 ⊢ (𝜑 → ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊊ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})))
229		cdaval 9280	. . . . . . . 8 ⊢ ((𝐴 ∈ V ∧ 1𝑜 ∈ ω) → (𝐴 +𝑐 1𝑜) = ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})))
230	4, 204, 229	sylancl 576	. . . . . . 7 ⊢ (𝜑 → (𝐴 +𝑐 1𝑜) = ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})))
231		cdaval 9280	. . . . . . . 8 ⊢ ((𝐴 ∈ V ∧ 2𝑜 ∈ ω) → (𝐴 +𝑐 2𝑜) = ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})))
232	4, 189, 231	sylancl 576	. . . . . . 7 ⊢ (𝜑 → (𝐴 +𝑐 2𝑜) = ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜})))
233	230, 232	psseq12d 3906	. . . . . 6 ⊢ (𝜑 → ((𝐴 +𝑐 1𝑜) ⊊ (𝐴 +𝑐 2𝑜) ↔ ((𝐴 × {∅}) ∪ (1𝑜 × {1𝑜})) ⊊ ((𝐴 × {∅}) ∪ (2𝑜 × {1𝑜}))))
234	228, 233	mpbird 248	. . . . 5 ⊢ (𝜑 → (𝐴 +𝑐 1𝑜) ⊊ (𝐴 +𝑐 2𝑜))
235		php3 8388	. . . . 5 ⊢ (((𝐴 +𝑐 2𝑜) ∈ Fin ∧ (𝐴 +𝑐 1𝑜) ⊊ (𝐴 +𝑐 2𝑜)) → (𝐴 +𝑐 1𝑜) ≺ (𝐴 +𝑐 2𝑜))
236	195, 234, 235	syl2anc 575	. . . 4 ⊢ (𝜑 → (𝐴 +𝑐 1𝑜) ≺ (𝐴 +𝑐 2𝑜))
237		canthp1lem1 9762	. . . . 5 ⊢ (1𝑜 ≺ 𝐴 → (𝐴 +𝑐 2𝑜) ≼ 𝒫 𝐴)
238	1, 237	syl 17	. . . 4 ⊢ (𝜑 → (𝐴 +𝑐 2𝑜) ≼ 𝒫 𝐴)
239		sdomdomtr 8335	. . . 4 ⊢ (((𝐴 +𝑐 1𝑜) ≺ (𝐴 +𝑐 2𝑜) ∧ (𝐴 +𝑐 2𝑜) ≼ 𝒫 𝐴) → (𝐴 +𝑐 1𝑜) ≺ 𝒫 𝐴)
240	236, 238, 239	syl2anc 575	. . 3 ⊢ (𝜑 → (𝐴 +𝑐 1𝑜) ≺ 𝒫 𝐴)
241		sdomnen 8224	. . 3 ⊢ ((𝐴 +𝑐 1𝑜) ≺ 𝒫 𝐴 → ¬ (𝐴 +𝑐 1𝑜) ≈ 𝒫 𝐴)
242	240, 241	syl 17	. 2 ⊢ (𝜑 → ¬ (𝐴 +𝑐 1𝑜) ≈ 𝒫 𝐴)
243	10, 242	pm2.65i 185	1 ⊢ ¬ 𝜑

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 197   ∧ wa 384   ∨ wo 865   ∧ w3a 1100   = wceq 1637  ∃wex 1859   ∈ wcel 2157   ≠ wne 2985  ∀wral 3103  Vcvv 3398   ∖ cdif 3773   ∪ cun 3774   ∩ cin 3775   ⊆ wss 3776   ⊊ wpss 3777  ∅c0 4123  ifcif 4286  𝒫 cpw 4358  {csn 4377  ⟨cop 4383  ∪ cuni 4637   class class class wbr 4851  {copab 4913   ↦ cmpt 4930   We wwe 5276   × cxp 5316  ^◡ccnv 5317  dom cdm 5318  ran crn 5319   ↾ cres 5320   “ cima 5321   ∘ ccom 5322  Ord word 5942  Oncon0 5943  suc csuc 5945  Fun wfun 6098   Fn wfn 6099  ⟶wf 6100  –1-1→wf1 6101  –onto→wfo 6102  –1-1-onto→wf1o 6103  ‘cfv 6104  (class class class)co 6877  ωcom 7298  1_𝑜c1o 7792  2_𝑜c2o 7793   ≈ cen 8192   ≼ cdom 8193   ≺ csdm 8194  Fincfn 8195  cardccrd 9047   +_𝑐 ccda 9277

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1877  ax-4 1894  ax-5 2001  ax-6 2069  ax-7 2105  ax-8 2159  ax-9 2166  ax-10 2186  ax-11 2202  ax-12 2215  ax-13 2422  ax-ext 2791  ax-rep 4971  ax-sep 4982  ax-nul 4990  ax-pow 5042  ax-pr 5103  ax-un 7182  ax-inf2 8788

This theorem depends on definitions:  df-bi 198  df-an 385  df-or 866  df-3or 1101  df-3an 1102  df-tru 1641  df-ex 1860  df-nf 1864  df-sb 2062  df-mo 2635  df-eu 2638  df-clab 2800  df-cleq 2806  df-clel 2809  df-nfc 2944  df-ne 2986  df-ral 3108  df-rex 3109  df-reu 3110  df-rmo 3111  df-rab 3112  df-v 3400  df-sbc 3641  df-csb 3736  df-dif 3779  df-un 3781  df-in 3783  df-ss 3790  df-pss 3792  df-nul 4124  df-if 4287  df-pw 4360  df-sn 4378  df-pr 4380  df-tp 4382  df-op 4384  df-uni 4638  df-int 4677  df-iun 4721  df-br 4852  df-opab 4914  df-mpt 4931  df-tr 4954  df-id 5226  df-eprel 5231  df-po 5239  df-so 5240  df-fr 5277  df-se 5278  df-we 5279  df-xp 5324  df-rel 5325  df-cnv 5326  df-co 5327  df-dm 5328  df-rn 5329  df-res 5330  df-ima 5331  df-pred 5900  df-ord 5946  df-on 5947  df-lim 5948  df-suc 5949  df-iota 6067  df-fun 6106  df-fn 6107  df-f 6108  df-f1 6109  df-fo 6110  df-f1o 6111  df-fv 6112  df-isom 6113  df-riota 6838  df-ov 6880  df-oprab 6881  df-mpt2 6882  df-om 7299  df-1st 7401  df-2nd 7402  df-wrecs 7645  df-recs 7707  df-rdg 7745  df-1o 7799  df-2o 7800  df-oadd 7803  df-er 7982  df-map 8097  df-en 8196  df-dom 8197  df-sdom 8198  df-fin 8199  df-oi 8657  df-card 9051  df-cda 9278

This theorem is referenced by:  canthp1  9764