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| Mirrors > Home > MPE Home > Th. List > cnvimarndm | Structured version Visualization version GIF version | ||
| Description: The preimage of the range of a class is equal to the domain of the class. (Contributed by Jeff Hankins, 15-Jul-2009.) (Proof shortened by BJ, 29-Sep-2026.) |
| Ref | Expression |
|---|---|
| cnvimarndm | ⊢ (◡𝐴 “ ran 𝐴) = dom 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssid 3934 | . 2 ⊢ ran 𝐴 ⊆ ran 𝐴 | |
| 2 | cnvimassrndm 6084 | . 2 ⊢ (ran 𝐴 ⊆ ran 𝐴 → (◡𝐴 “ ran 𝐴) = dom 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (◡𝐴 “ ran 𝐴) = dom 𝐴 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ⊆ wss 3899 ◡ccnv 5653 dom cdm 5654 ran crn 5655 “ cima 5657 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 ax-sep 5251 ax-pr 5394 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2838 df-ral 3080 df-rex 3090 df-rab 3416 df-v 3455 df-ss 3900 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-sn 4588 df-pr 4590 df-op 4838 df-br 5106 df-opab 5170 df-xp 5660 df-cnv 5662 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 |
| This theorem is used by: cnvimassrndmOLD 6205 focnvimacdmdm 6816 cnvimainrn 7074 cnrest2 23616 mbfconstlem 25960 i1fima 26011 i1fima2 26012 i1fd 26014 i1f0rn 26015 itg1addlem5 26033 rnplynfin 26642 fcoinver 33252 supppreima 33338 sibfof 35025 itg2addnclem 38729 itg2addnclem2 38730 ftc1anclem6 38756 f1cof1blem 48283 f1cof1b 48286 fnfocofob 48288 |
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