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| Mirrors > Home > MPE Home > Th. List > Mathboxes > cnvepima | Structured version Visualization version GIF version | ||
| Description: The image of converse epsilon. (Contributed by Peter Mazsa, 22-Mar-2023.) |
| Ref | Expression |
|---|---|
| cnvepima | ⊢ (𝐴 ∈ 𝑉 → (◡ E “ 𝐴) = ∪ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnvepresex 38677 | . . 3 ⊢ (𝐴 ∈ 𝑉 → (◡ E ↾ 𝐴) ∈ V) | |
| 2 | uniqs 8715 | . . 3 ⊢ ((◡ E ↾ 𝐴) ∈ V → ∪ (𝐴 / ◡ E ) = (◡ E “ 𝐴)) | |
| 3 | 1, 2 | syl 17 | . 2 ⊢ (𝐴 ∈ 𝑉 → ∪ (𝐴 / ◡ E ) = (◡ E “ 𝐴)) |
| 4 | qsid 8723 | . . 3 ⊢ (𝐴 / ◡ E ) = 𝐴 | |
| 5 | 4 | unieqi 4863 | . 2 ⊢ ∪ (𝐴 / ◡ E ) = ∪ 𝐴 |
| 6 | 3, 5 | eqtr3di 2787 | 1 ⊢ (𝐴 ∈ 𝑉 → (◡ E “ 𝐴) = ∪ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 Vcvv 3430 ∪ cuni 4851 E cep 5525 ◡ccnv 5625 ↾ cres 5628 “ cima 5629 / cqs 8637 |
| 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 2709 ax-rep 5213 ax-sep 5232 ax-pow 5304 ax-pr 5372 ax-un 7684 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-clab 2716 df-cleq 2729 df-clel 2812 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-eprel 5526 df-xp 5632 df-rel 5633 df-cnv 5634 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-ec 8640 df-qs 8644 |
| This theorem is referenced by: (None) |
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