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| Mirrors > Home > MPE Home > Th. List > imacnvcnv | Structured version Visualization version GIF version | ||
| Description: The image of the double converse of a class. (Contributed by NM, 8-Apr-2007.) |
| Ref | Expression |
|---|---|
| imacnvcnv | ⊢ (◡◡𝐴 “ 𝐵) = (𝐴 “ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rescnvcnv 6198 | . . 3 ⊢ (◡◡𝐴 ↾ 𝐵) = (𝐴 ↾ 𝐵) | |
| 2 | 1 | rneqi 5919 | . 2 ⊢ ran (◡◡𝐴 ↾ 𝐵) = ran (𝐴 ↾ 𝐵) |
| 3 | df-ima 5664 | . 2 ⊢ (◡◡𝐴 “ 𝐵) = ran (◡◡𝐴 ↾ 𝐵) | |
| 4 | df-ima 5664 | . 2 ⊢ (𝐴 “ 𝐵) = ran (𝐴 ↾ 𝐵) | |
| 5 | 2, 3, 4 | 3eqtr4i 2794 | 1 ⊢ (◡◡𝐴 “ 𝐵) = (𝐴 “ 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ◡ccnv 5650 ran crn 5652 ↾ cres 5653 “ cima 5654 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 ax-sep 5249 ax-pr 5391 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-xp 5657 df-rel 5658 df-cnv 5659 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 |
| This theorem is used by: curry1 8104 curry2 8107 fnwelem 8132 fpwwe2lem5 10698 fpwwe2lem8 10701 eqglact 19368 hmeoima 24061 hmeocld 24063 hmeocls 24064 hmeontr 24065 reghmph 24089 qtopf1 24112 tgpconncompeqg 24408 imasf1obl 24784 mbfimaopnlem 25953 hmeoclda 37088 |
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