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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 3935 | . 2 ⊢ ran 𝐴 ⊆ ran 𝐴 | |
| 2 | cnvimassrndm 6097 | . 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 1570 ⊆ wss 3900 ◡ccnv 5657 dom cdm 5658 ran crn 5659 “ cima 5661 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5255 ax-pr 5398 |
| 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 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-br 5109 df-opab 5174 df-xp 5664 df-cnv 5666 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 |
| This theorem is used by: cnvimassrndmOLD 6218 focnvimacdmdm 6838 cnvimainrn 7098 cnrest2 23659 mbfconstlem 26003 i1fima 26054 i1fima2 26055 i1fd 26057 i1f0rn 26058 itg1addlem5 26076 rnplynfin 26685 fcoinver 33296 supppreima 33381 sibfof 35083 itg2addnclem 38857 itg2addnclem2 38858 ftc1anclem6 38884 f1cof1blem 48417 f1cof1b 48420 fnfocofob 48422 |
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