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Theorem cnvrcl0 38631
Description: The converse of the reflexive closure is equal to the closure of the converse. (Contributed by RP, 18-Oct-2020.)
Assertion
Ref Expression
cnvrcl0 (𝑋𝑉 {𝑥 ∣ (𝑋𝑥 ∧ ( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥)} = {𝑦 ∣ (𝑋𝑦 ∧ ( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦)})
Distinct variable groups:   𝑥,𝑦,𝑉   𝑥,𝑋,𝑦

Proof of Theorem cnvrcl0
StepHypRef Expression
1 cnvresid 6148 . . . . . . 7 ( I ↾ (dom 𝑦 ∪ ran 𝑦)) = ( I ↾ (dom 𝑦 ∪ ran 𝑦))
2 cnvnonrel 38593 . . . . . . . . . . . . . . . 16 (𝑋𝑋) = ∅
3 cnv0 5720 . . . . . . . . . . . . . . . 16 ∅ = ∅
42, 3eqtr4i 2790 . . . . . . . . . . . . . . 15 (𝑋𝑋) =
54dmeqi 5495 . . . . . . . . . . . . . 14 dom (𝑋𝑋) = dom
6 df-rn 5290 . . . . . . . . . . . . . 14 ran (𝑋𝑋) = dom (𝑋𝑋)
7 df-rn 5290 . . . . . . . . . . . . . 14 ran ∅ = dom
85, 6, 73eqtr4i 2797 . . . . . . . . . . . . 13 ran (𝑋𝑋) = ran ∅
9 0ss 4136 . . . . . . . . . . . . . 14 ∅ ⊆ 𝑦
10 rnss 5524 . . . . . . . . . . . . . 14 (∅ ⊆ 𝑦 → ran ∅ ⊆ ran 𝑦)
119, 10ax-mp 5 . . . . . . . . . . . . 13 ran ∅ ⊆ ran 𝑦
128, 11eqsstri 3797 . . . . . . . . . . . 12 ran (𝑋𝑋) ⊆ ran 𝑦
13 ssequn2 3950 . . . . . . . . . . . 12 (ran (𝑋𝑋) ⊆ ran 𝑦 ↔ (ran 𝑦 ∪ ran (𝑋𝑋)) = ran 𝑦)
1412, 13mpbi 221 . . . . . . . . . . 11 (ran 𝑦 ∪ ran (𝑋𝑋)) = ran 𝑦
15 rnun 5726 . . . . . . . . . . 11 ran (𝑦 ∪ (𝑋𝑋)) = (ran 𝑦 ∪ ran (𝑋𝑋))
16 dfdm4 5486 . . . . . . . . . . 11 dom 𝑦 = ran 𝑦
1714, 15, 163eqtr4ri 2798 . . . . . . . . . 10 dom 𝑦 = ran (𝑦 ∪ (𝑋𝑋))
184rneqi 5522 . . . . . . . . . . . . . 14 ran (𝑋𝑋) = ran
19 dfdm4 5486 . . . . . . . . . . . . . 14 dom (𝑋𝑋) = ran (𝑋𝑋)
20 dfdm4 5486 . . . . . . . . . . . . . 14 dom ∅ = ran
2118, 19, 203eqtr4i 2797 . . . . . . . . . . . . 13 dom (𝑋𝑋) = dom ∅
22 dmss 5493 . . . . . . . . . . . . . 14 (∅ ⊆ 𝑦 → dom ∅ ⊆ dom 𝑦)
239, 22ax-mp 5 . . . . . . . . . . . . 13 dom ∅ ⊆ dom 𝑦
2421, 23eqsstri 3797 . . . . . . . . . . . 12 dom (𝑋𝑋) ⊆ dom 𝑦
25 ssequn2 3950 . . . . . . . . . . . 12 (dom (𝑋𝑋) ⊆ dom 𝑦 ↔ (dom 𝑦 ∪ dom (𝑋𝑋)) = dom 𝑦)
2624, 25mpbi 221 . . . . . . . . . . 11 (dom 𝑦 ∪ dom (𝑋𝑋)) = dom 𝑦
27 dmun 5501 . . . . . . . . . . 11 dom (𝑦 ∪ (𝑋𝑋)) = (dom 𝑦 ∪ dom (𝑋𝑋))
28 df-rn 5290 . . . . . . . . . . 11 ran 𝑦 = dom 𝑦
2926, 27, 283eqtr4ri 2798 . . . . . . . . . 10 ran 𝑦 = dom (𝑦 ∪ (𝑋𝑋))
3017, 29uneq12i 3929 . . . . . . . . 9 (dom 𝑦 ∪ ran 𝑦) = (ran (𝑦 ∪ (𝑋𝑋)) ∪ dom (𝑦 ∪ (𝑋𝑋)))
3130equncomi 3923 . . . . . . . 8 (dom 𝑦 ∪ ran 𝑦) = (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋)))
3231reseq2i 5564 . . . . . . 7 ( I ↾ (dom 𝑦 ∪ ran 𝑦)) = ( I ↾ (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋))))
331, 32eqtr2i 2788 . . . . . 6 ( I ↾ (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋)))) = ( I ↾ (dom 𝑦 ∪ ran 𝑦))
34 cnvss 5465 . . . . . 6 (( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦)
3533, 34syl5eqss 3811 . . . . 5 (( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦 → ( I ↾ (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋)))) ⊆ 𝑦)
36 ssun1 3940 . . . . 5 𝑦 ⊆ (𝑦 ∪ (𝑋𝑋))
3735, 36syl6ss 3775 . . . 4 (( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦 → ( I ↾ (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋)))) ⊆ (𝑦 ∪ (𝑋𝑋)))
38 dmeq 5494 . . . . . . 7 (𝑥 = (𝑦 ∪ (𝑋𝑋)) → dom 𝑥 = dom (𝑦 ∪ (𝑋𝑋)))
39 rneq 5521 . . . . . . 7 (𝑥 = (𝑦 ∪ (𝑋𝑋)) → ran 𝑥 = ran (𝑦 ∪ (𝑋𝑋)))
4038, 39uneq12d 3932 . . . . . 6 (𝑥 = (𝑦 ∪ (𝑋𝑋)) → (dom 𝑥 ∪ ran 𝑥) = (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋))))
4140reseq2d 5567 . . . . 5 (𝑥 = (𝑦 ∪ (𝑋𝑋)) → ( I ↾ (dom 𝑥 ∪ ran 𝑥)) = ( I ↾ (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋)))))
42 id 22 . . . . 5 (𝑥 = (𝑦 ∪ (𝑋𝑋)) → 𝑥 = (𝑦 ∪ (𝑋𝑋)))
4341, 42sseq12d 3796 . . . 4 (𝑥 = (𝑦 ∪ (𝑋𝑋)) → (( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥 ↔ ( I ↾ (dom (𝑦 ∪ (𝑋𝑋)) ∪ ran (𝑦 ∪ (𝑋𝑋)))) ⊆ (𝑦 ∪ (𝑋𝑋))))
4437, 43syl5ibr 237 . . 3 (𝑥 = (𝑦 ∪ (𝑋𝑋)) → (( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦 → ( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥))
4544adantl 473 . 2 ((𝑋𝑉𝑥 = (𝑦 ∪ (𝑋𝑋))) → (( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦 → ( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥))
46 cnvresid 6148 . . . . . 6 ( I ↾ (dom 𝑥 ∪ ran 𝑥)) = ( I ↾ (dom 𝑥 ∪ ran 𝑥))
47 dfdm4 5486 . . . . . . . . 9 dom 𝑥 = ran 𝑥
48 df-rn 5290 . . . . . . . . 9 ran 𝑥 = dom 𝑥
4947, 48uneq12i 3929 . . . . . . . 8 (dom 𝑥 ∪ ran 𝑥) = (ran 𝑥 ∪ dom 𝑥)
5049equncomi 3923 . . . . . . 7 (dom 𝑥 ∪ ran 𝑥) = (dom 𝑥 ∪ ran 𝑥)
5150reseq2i 5564 . . . . . 6 ( I ↾ (dom 𝑥 ∪ ran 𝑥)) = ( I ↾ (dom 𝑥 ∪ ran 𝑥))
5246, 51eqtr2i 2788 . . . . 5 ( I ↾ (dom 𝑥 ∪ ran 𝑥)) = ( I ↾ (dom 𝑥 ∪ ran 𝑥))
53 cnvss 5465 . . . . 5 (( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥)
5452, 53syl5eqss 3811 . . . 4 (( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥 → ( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥)
55 dmeq 5494 . . . . . . 7 (𝑦 = 𝑥 → dom 𝑦 = dom 𝑥)
56 rneq 5521 . . . . . . 7 (𝑦 = 𝑥 → ran 𝑦 = ran 𝑥)
5755, 56uneq12d 3932 . . . . . 6 (𝑦 = 𝑥 → (dom 𝑦 ∪ ran 𝑦) = (dom 𝑥 ∪ ran 𝑥))
5857reseq2d 5567 . . . . 5 (𝑦 = 𝑥 → ( I ↾ (dom 𝑦 ∪ ran 𝑦)) = ( I ↾ (dom 𝑥 ∪ ran 𝑥)))
59 id 22 . . . . 5 (𝑦 = 𝑥𝑦 = 𝑥)
6058, 59sseq12d 3796 . . . 4 (𝑦 = 𝑥 → (( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦 ↔ ( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥))
6154, 60syl5ibr 237 . . 3 (𝑦 = 𝑥 → (( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥 → ( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦))
6261adantl 473 . 2 ((𝑋𝑉𝑦 = 𝑥) → (( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥 → ( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦))
63 dmeq 5494 . . . . 5 (𝑥 = (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) → dom 𝑥 = dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))
64 rneq 5521 . . . . 5 (𝑥 = (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) → ran 𝑥 = ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))
6563, 64uneq12d 3932 . . . 4 (𝑥 = (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) → (dom 𝑥 ∪ ran 𝑥) = (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))))
6665reseq2d 5567 . . 3 (𝑥 = (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) → ( I ↾ (dom 𝑥 ∪ ran 𝑥)) = ( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))))
67 id 22 . . 3 (𝑥 = (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) → 𝑥 = (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))
6866, 67sseq12d 3796 . 2 (𝑥 = (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) → (( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥 ↔ ( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))) ⊆ (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))))
69 ssun1 3940 . . 3 𝑋 ⊆ (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))
7069a1i 11 . 2 (𝑋𝑉𝑋 ⊆ (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))
71 dmexg 7299 . . . . 5 (𝑋𝑉 → dom 𝑋 ∈ V)
72 rnexg 7300 . . . . 5 (𝑋𝑉 → ran 𝑋 ∈ V)
73 unexg 7161 . . . . 5 ((dom 𝑋 ∈ V ∧ ran 𝑋 ∈ V) → (dom 𝑋 ∪ ran 𝑋) ∈ V)
7471, 72, 73syl2anc 579 . . . 4 (𝑋𝑉 → (dom 𝑋 ∪ ran 𝑋) ∈ V)
7574resiexd 6677 . . 3 (𝑋𝑉 → ( I ↾ (dom 𝑋 ∪ ran 𝑋)) ∈ V)
76 unexg 7161 . . 3 ((𝑋𝑉 ∧ ( I ↾ (dom 𝑋 ∪ ran 𝑋)) ∈ V) → (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∈ V)
7775, 76mpdan 678 . 2 (𝑋𝑉 → (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∈ V)
78 dmun 5501 . . . . . 6 dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) = (dom 𝑋 ∪ dom ( I ↾ (dom 𝑋 ∪ ran 𝑋)))
79 ssun1 3940 . . . . . . 7 dom 𝑋 ⊆ (dom 𝑋 ∪ ran 𝑋)
80 dmresi 5643 . . . . . . . 8 dom ( I ↾ (dom 𝑋 ∪ ran 𝑋)) = (dom 𝑋 ∪ ran 𝑋)
8180eqimssi 3821 . . . . . . 7 dom ( I ↾ (dom 𝑋 ∪ ran 𝑋)) ⊆ (dom 𝑋 ∪ ran 𝑋)
8279, 81unssi 3952 . . . . . 6 (dom 𝑋 ∪ dom ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋)
8378, 82eqsstri 3797 . . . . 5 dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋)
84 rnun 5726 . . . . . 6 ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) = (ran 𝑋 ∪ ran ( I ↾ (dom 𝑋 ∪ ran 𝑋)))
85 ssun2 3941 . . . . . . 7 ran 𝑋 ⊆ (dom 𝑋 ∪ ran 𝑋)
86 rnresi 5663 . . . . . . . 8 ran ( I ↾ (dom 𝑋 ∪ ran 𝑋)) = (dom 𝑋 ∪ ran 𝑋)
8786eqimssi 3821 . . . . . . 7 ran ( I ↾ (dom 𝑋 ∪ ran 𝑋)) ⊆ (dom 𝑋 ∪ ran 𝑋)
8885, 87unssi 3952 . . . . . 6 (ran 𝑋 ∪ ran ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋)
8984, 88eqsstri 3797 . . . . 5 ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋)
9083, 89pm3.2i 462 . . . 4 (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋) ∧ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋))
91 unss 3951 . . . . 5 ((dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋) ∧ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋)) ↔ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))) ⊆ (dom 𝑋 ∪ ran 𝑋))
92 ssres2 5602 . . . . 5 ((dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))) ⊆ (dom 𝑋 ∪ ran 𝑋) → ( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))) ⊆ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))
9391, 92sylbi 208 . . . 4 ((dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋) ∧ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ⊆ (dom 𝑋 ∪ ran 𝑋)) → ( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))) ⊆ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))
94 ssun4 3943 . . . 4 (( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))) ⊆ ( I ↾ (dom 𝑋 ∪ ran 𝑋)) → ( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))) ⊆ (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))
9590, 93, 94mp2b 10 . . 3 ( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))) ⊆ (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋)))
9695a1i 11 . 2 (𝑋𝑉 → ( I ↾ (dom (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))) ∪ ran (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))) ⊆ (𝑋 ∪ ( I ↾ (dom 𝑋 ∪ ran 𝑋))))
9745, 62, 68, 70, 77, 96clcnvlem 38629 1 (𝑋𝑉 {𝑥 ∣ (𝑋𝑥 ∧ ( I ↾ (dom 𝑥 ∪ ran 𝑥)) ⊆ 𝑥)} = {𝑦 ∣ (𝑋𝑦 ∧ ( I ↾ (dom 𝑦 ∪ ran 𝑦)) ⊆ 𝑦)})
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 384   = wceq 1652  wcel 2155  {cab 2751  Vcvv 3350  cdif 3731  cun 3732  wss 3734  c0 4081   cint 4635   I cid 5186  ccnv 5278  dom cdm 5279  ran crn 5280  cres 5281
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1890  ax-4 1904  ax-5 2005  ax-6 2070  ax-7 2105  ax-8 2157  ax-9 2164  ax-10 2183  ax-11 2198  ax-12 2211  ax-13 2352  ax-ext 2743  ax-rep 4932  ax-sep 4943  ax-nul 4951  ax-pow 5003  ax-pr 5064  ax-un 7151
This theorem depends on definitions:  df-bi 198  df-an 385  df-or 874  df-3an 1109  df-tru 1656  df-ex 1875  df-nf 1879  df-sb 2063  df-mo 2565  df-eu 2582  df-clab 2752  df-cleq 2758  df-clel 2761  df-nfc 2896  df-ne 2938  df-ral 3060  df-rex 3061  df-reu 3062  df-rab 3064  df-v 3352  df-sbc 3599  df-csb 3694  df-dif 3737  df-un 3739  df-in 3741  df-ss 3748  df-nul 4082  df-if 4246  df-pw 4319  df-sn 4337  df-pr 4339  df-op 4343  df-uni 4597  df-int 4636  df-iun 4680  df-br 4812  df-opab 4874  df-mpt 4891  df-id 5187  df-xp 5285  df-rel 5286  df-cnv 5287  df-co 5288  df-dm 5289  df-rn 5290  df-res 5291  df-ima 5292  df-iota 6033  df-fun 6072  df-fn 6073  df-f 6074  df-f1 6075  df-fo 6076  df-f1o 6077  df-fv 6078  df-1st 7370  df-2nd 7371
This theorem is referenced by: (None)
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