Theorem ufldom 23927

Description: The ultrafilter lemma property is a cardinal invariant, so since it transfers to subsets it also transfers over set dominance. (Contributed by Mario Carneiro, 26-Aug-2015.)

Assertion

Ref	Expression
ufldom	⊢ ((𝑋 ∈ UFL ∧ 𝑌 ≼ 𝑋) → 𝑌 ∈ UFL)

Proof of Theorem ufldom

Dummy variables 𝑢 𝑥 𝑓 𝑔 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		domeng 8909	. . 3 ⊢ (𝑋 ∈ UFL → (𝑌 ≼ 𝑋 ↔ ∃𝑥(𝑌 ≈ 𝑥 ∧ 𝑥 ⊆ 𝑋)))
2		bren 8903	. . . . . . . 8 ⊢ (𝑌 ≈ 𝑥 ↔ ∃𝑓 𝑓:𝑌–1-1-onto→𝑥)
3	2	biimpi 216	. . . . . . 7 ⊢ (𝑌 ≈ 𝑥 → ∃𝑓 𝑓:𝑌–1-1-onto→𝑥)
4		ssufl 23883	. . . . . . 7 ⊢ ((𝑋 ∈ UFL ∧ 𝑥 ⊆ 𝑋) → 𝑥 ∈ UFL)
5		simplr 769	. . . . . . . . . . . . . 14 ⊢ (((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) → 𝑥 ∈ UFL)
6		filfbas 23813	. . . . . . . . . . . . . . . 16 ⊢ (𝑔 ∈ (Fil‘𝑌) → 𝑔 ∈ (fBas‘𝑌))
7	6	adantl 481	. . . . . . . . . . . . . . 15 ⊢ (((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) → 𝑔 ∈ (fBas‘𝑌))
8		f1of 6780	. . . . . . . . . . . . . . . 16 ⊢ (𝑓:𝑌–1-1-onto→𝑥 → 𝑓:𝑌⟶𝑥)
9	8	ad2antrr 727	. . . . . . . . . . . . . . 15 ⊢ (((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) → 𝑓:𝑌⟶𝑥)
10		fmfil 23909	. . . . . . . . . . . . . . 15 ⊢ ((𝑥 ∈ UFL ∧ 𝑔 ∈ (fBas‘𝑌) ∧ 𝑓:𝑌⟶𝑥) → ((𝑥 FilMap 𝑓)‘𝑔) ∈ (Fil‘𝑥))
11	5, 7, 9, 10	syl3anc 1374	. . . . . . . . . . . . . 14 ⊢ (((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) → ((𝑥 FilMap 𝑓)‘𝑔) ∈ (Fil‘𝑥))
12		ufli 23879	. . . . . . . . . . . . . 14 ⊢ ((𝑥 ∈ UFL ∧ ((𝑥 FilMap 𝑓)‘𝑔) ∈ (Fil‘𝑥)) → ∃𝑦 ∈ (UFil‘𝑥)((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)
13	5, 11, 12	syl2anc 585	. . . . . . . . . . . . 13 ⊢ (((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) → ∃𝑦 ∈ (UFil‘𝑥)((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)
14		f1odm 6784	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑓:𝑌–1-1-onto→𝑥 → dom 𝑓 = 𝑌)
15	14	adantr 480	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) → dom 𝑓 = 𝑌)
16		vex 3433	. . . . . . . . . . . . . . . . . 18 ⊢ 𝑓 ∈ V
17	16	dmex 7860	. . . . . . . . . . . . . . . . 17 ⊢ dom 𝑓 ∈ V
18	15, 17	eqeltrrdi 2845	. . . . . . . . . . . . . . . 16 ⊢ ((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) → 𝑌 ∈ V)
19	18	ad2antrr 727	. . . . . . . . . . . . . . 15 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑌 ∈ V)
20		simprl 771	. . . . . . . . . . . . . . 15 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑦 ∈ (UFil‘𝑥))
21		f1ocnv 6792	. . . . . . . . . . . . . . . . 17 ⊢ (𝑓:𝑌–1-1-onto→𝑥 → ◡𝑓:𝑥–1-1-onto→𝑌)
22	21	ad3antrrr 731	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ◡𝑓:𝑥–1-1-onto→𝑌)
23		f1of 6780	. . . . . . . . . . . . . . . 16 ⊢ (◡𝑓:𝑥–1-1-onto→𝑌 → ◡𝑓:𝑥⟶𝑌)
24	22, 23	syl 17	. . . . . . . . . . . . . . 15 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ◡𝑓:𝑥⟶𝑌)
25		fmufil 23924	. . . . . . . . . . . . . . 15 ⊢ ((𝑌 ∈ V ∧ 𝑦 ∈ (UFil‘𝑥) ∧ ◡𝑓:𝑥⟶𝑌) → ((𝑌 FilMap ◡𝑓)‘𝑦) ∈ (UFil‘𝑌))
26	19, 20, 24, 25	syl3anc 1374	. . . . . . . . . . . . . 14 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑌 FilMap ◡𝑓)‘𝑦) ∈ (UFil‘𝑌))
27		f1ococnv1 6809	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑓:𝑌–1-1-onto→𝑥 → (◡𝑓 ∘ 𝑓) = ( I ↾ 𝑌))
28	27	ad3antrrr 731	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → (◡𝑓 ∘ 𝑓) = ( I ↾ 𝑌))
29	28	oveq2d 7383	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → (𝑌 FilMap (◡𝑓 ∘ 𝑓)) = (𝑌 FilMap ( I ↾ 𝑌)))
30	29	fveq1d 6842	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑌 FilMap (◡𝑓 ∘ 𝑓))‘𝑔) = ((𝑌 FilMap ( I ↾ 𝑌))‘𝑔))
31	5	adantr 480	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑥 ∈ UFL)
32	7	adantr 480	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑔 ∈ (fBas‘𝑌))
33	8	ad3antrrr 731	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑓:𝑌⟶𝑥)
34		fmco 23926	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑌 ∈ V ∧ 𝑥 ∈ UFL ∧ 𝑔 ∈ (fBas‘𝑌)) ∧ (◡𝑓:𝑥⟶𝑌 ∧ 𝑓:𝑌⟶𝑥)) → ((𝑌 FilMap (◡𝑓 ∘ 𝑓))‘𝑔) = ((𝑌 FilMap ◡𝑓)‘((𝑥 FilMap 𝑓)‘𝑔)))
35	19, 31, 32, 24, 33, 34	syl32anc 1381	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑌 FilMap (◡𝑓 ∘ 𝑓))‘𝑔) = ((𝑌 FilMap ◡𝑓)‘((𝑥 FilMap 𝑓)‘𝑔)))
36		simplr 769	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑔 ∈ (Fil‘𝑌))
37		fmid 23925	. . . . . . . . . . . . . . . . 17 ⊢ (𝑔 ∈ (Fil‘𝑌) → ((𝑌 FilMap ( I ↾ 𝑌))‘𝑔) = 𝑔)
38	36, 37	syl 17	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑌 FilMap ( I ↾ 𝑌))‘𝑔) = 𝑔)
39	30, 35, 38	3eqtr3d 2779	. . . . . . . . . . . . . . 15 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑌 FilMap ◡𝑓)‘((𝑥 FilMap 𝑓)‘𝑔)) = 𝑔)
40	11	adantr 480	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑥 FilMap 𝑓)‘𝑔) ∈ (Fil‘𝑥))
41		filfbas 23813	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑥 FilMap 𝑓)‘𝑔) ∈ (Fil‘𝑥) → ((𝑥 FilMap 𝑓)‘𝑔) ∈ (fBas‘𝑥))
42	40, 41	syl 17	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑥 FilMap 𝑓)‘𝑔) ∈ (fBas‘𝑥))
43		ufilfil 23869	. . . . . . . . . . . . . . . . 17 ⊢ (𝑦 ∈ (UFil‘𝑥) → 𝑦 ∈ (Fil‘𝑥))
44		filfbas 23813	. . . . . . . . . . . . . . . . 17 ⊢ (𝑦 ∈ (Fil‘𝑥) → 𝑦 ∈ (fBas‘𝑥))
45	20, 43, 44	3syl 18	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑦 ∈ (fBas‘𝑥))
46		simprr 773	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)
47		fmss 23911	. . . . . . . . . . . . . . . 16 ⊢ (((𝑌 ∈ V ∧ ((𝑥 FilMap 𝑓)‘𝑔) ∈ (fBas‘𝑥) ∧ 𝑦 ∈ (fBas‘𝑥)) ∧ (◡𝑓:𝑥⟶𝑌 ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑌 FilMap ◡𝑓)‘((𝑥 FilMap 𝑓)‘𝑔)) ⊆ ((𝑌 FilMap ◡𝑓)‘𝑦))
48	19, 42, 45, 24, 46, 47	syl32anc 1381	. . . . . . . . . . . . . . 15 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ((𝑌 FilMap ◡𝑓)‘((𝑥 FilMap 𝑓)‘𝑔)) ⊆ ((𝑌 FilMap ◡𝑓)‘𝑦))
49	39, 48	eqsstrrd 3957	. . . . . . . . . . . . . 14 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → 𝑔 ⊆ ((𝑌 FilMap ◡𝑓)‘𝑦))
50		sseq2 3948	. . . . . . . . . . . . . . 15 ⊢ (𝑢 = ((𝑌 FilMap ◡𝑓)‘𝑦) → (𝑔 ⊆ 𝑢 ↔ 𝑔 ⊆ ((𝑌 FilMap ◡𝑓)‘𝑦)))
51	50	rspcev 3564	. . . . . . . . . . . . . 14 ⊢ ((((𝑌 FilMap ◡𝑓)‘𝑦) ∈ (UFil‘𝑌) ∧ 𝑔 ⊆ ((𝑌 FilMap ◡𝑓)‘𝑦)) → ∃𝑢 ∈ (UFil‘𝑌)𝑔 ⊆ 𝑢)
52	26, 49, 51	syl2anc 585	. . . . . . . . . . . . 13 ⊢ ((((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) ∧ (𝑦 ∈ (UFil‘𝑥) ∧ ((𝑥 FilMap 𝑓)‘𝑔) ⊆ 𝑦)) → ∃𝑢 ∈ (UFil‘𝑌)𝑔 ⊆ 𝑢)
53	13, 52	rexlimddv 3144	. . . . . . . . . . . 12 ⊢ (((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) ∧ 𝑔 ∈ (Fil‘𝑌)) → ∃𝑢 ∈ (UFil‘𝑌)𝑔 ⊆ 𝑢)
54	53	ralrimiva 3129	. . . . . . . . . . 11 ⊢ ((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) → ∀𝑔 ∈ (Fil‘𝑌)∃𝑢 ∈ (UFil‘𝑌)𝑔 ⊆ 𝑢)
55		isufl 23878	. . . . . . . . . . . 12 ⊢ (𝑌 ∈ V → (𝑌 ∈ UFL ↔ ∀𝑔 ∈ (Fil‘𝑌)∃𝑢 ∈ (UFil‘𝑌)𝑔 ⊆ 𝑢))
56	18, 55	syl 17	. . . . . . . . . . 11 ⊢ ((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) → (𝑌 ∈ UFL ↔ ∀𝑔 ∈ (Fil‘𝑌)∃𝑢 ∈ (UFil‘𝑌)𝑔 ⊆ 𝑢))
57	54, 56	mpbird 257	. . . . . . . . . 10 ⊢ ((𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) → 𝑌 ∈ UFL)
58	57	ex 412	. . . . . . . . 9 ⊢ (𝑓:𝑌–1-1-onto→𝑥 → (𝑥 ∈ UFL → 𝑌 ∈ UFL))
59	58	exlimiv 1932	. . . . . . . 8 ⊢ (∃𝑓 𝑓:𝑌–1-1-onto→𝑥 → (𝑥 ∈ UFL → 𝑌 ∈ UFL))
60	59	imp 406	. . . . . . 7 ⊢ ((∃𝑓 𝑓:𝑌–1-1-onto→𝑥 ∧ 𝑥 ∈ UFL) → 𝑌 ∈ UFL)
61	3, 4, 60	syl2an 597	. . . . . 6 ⊢ ((𝑌 ≈ 𝑥 ∧ (𝑋 ∈ UFL ∧ 𝑥 ⊆ 𝑋)) → 𝑌 ∈ UFL)
62	61	an12s 650	. . . . 5 ⊢ ((𝑋 ∈ UFL ∧ (𝑌 ≈ 𝑥 ∧ 𝑥 ⊆ 𝑋)) → 𝑌 ∈ UFL)
63	62	ex 412	. . . 4 ⊢ (𝑋 ∈ UFL → ((𝑌 ≈ 𝑥 ∧ 𝑥 ⊆ 𝑋) → 𝑌 ∈ UFL))
64	63	exlimdv 1935	. . 3 ⊢ (𝑋 ∈ UFL → (∃𝑥(𝑌 ≈ 𝑥 ∧ 𝑥 ⊆ 𝑋) → 𝑌 ∈ UFL))
65	1, 64	sylbid 240	. 2 ⊢ (𝑋 ∈ UFL → (𝑌 ≼ 𝑋 → 𝑌 ∈ UFL))
66	65	imp 406	1 ⊢ ((𝑋 ∈ UFL ∧ 𝑌 ≼ 𝑋) → 𝑌 ∈ UFL)

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   = wceq 1542  ∃wex 1781   ∈ wcel 2114  ∀wral 3051  ∃wrex 3061  Vcvv 3429   ⊆ wss 3889   class class class wbr 5085   I cid 5525  ^◡ccnv 5630  dom cdm 5631   ↾ cres 5633   ∘ ccom 5635  ⟶wf 6494  –1-1-onto→wf1o 6497  ‘cfv 6498  (class class class)co 7367   ≈ cen 8890   ≼ cdom 8891  fBascfbas 21340  Filcfil 23810  UFilcufil 23864  UFLcufl 23865   FilMap cfm 23898

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-rep 5212  ax-sep 5231  ax-nul 5241  ax-pow 5307  ax-pr 5375  ax-un 7689

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-nel 3037  df-ral 3052  df-rex 3062  df-reu 3343  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-pss 3909  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-int 4890  df-iun 4935  df-br 5086  df-opab 5148  df-mpt 5167  df-tr 5193  df-id 5526  df-eprel 5531  df-po 5539  df-so 5540  df-fr 5584  df-we 5586  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-ord 6326  df-on 6327  df-lim 6328  df-suc 6329  df-iota 6454  df-fun 6500  df-fn 6501  df-f 6502  df-f1 6503  df-fo 6504  df-f1o 6505  df-fv 6506  df-ov 7370  df-oprab 7371  df-mpo 7372  df-om 7818  df-1st 7942  df-2nd 7943  df-1o 8405  df-2o 8406  df-en 8894  df-dom 8895  df-fin 8897  df-fi 9324  df-rest 17385  df-fbas 21349  df-fg 21350  df-fil 23811  df-ufil 23866  df-ufl 23867  df-fm 23903

This theorem is referenced by: (None)