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| Mirrors > Home > MPE Home > Th. List > cnvssrndm | Structured version Visualization version GIF version | ||
| Description: The converse is a subset of the cartesian product of range and domain. (Contributed by Mario Carneiro, 2-Jan-2017.) |
| Ref | Expression |
|---|---|
| cnvssrndm | ⊢ ◡𝐴 ⊆ (ran 𝐴 × dom 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relcnv 6105 | . . 3 ⊢ Rel ◡𝐴 | |
| 2 | relssdmrn 6270 | . . 3 ⊢ (Rel ◡𝐴 → ◡𝐴 ⊆ (dom ◡𝐴 × ran ◡𝐴)) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ ◡𝐴 ⊆ (dom ◡𝐴 × ran ◡𝐴) |
| 4 | df-rn 5671 | . . 3 ⊢ ran 𝐴 = dom ◡𝐴 | |
| 5 | dfdm4 5884 | . . 3 ⊢ dom 𝐴 = ran ◡𝐴 | |
| 6 | 4, 5 | xpeq12i 5688 | . 2 ⊢ (ran 𝐴 × dom 𝐴) = (dom ◡𝐴 × ran ◡𝐴) |
| 7 | 3, 6 | sseqtrri 3985 | 1 ⊢ ◡𝐴 ⊆ (ran 𝐴 × dom 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3904 × cxp 5658 ◡ccnv 5659 dom cdm 5660 ran crn 5661 Rel wrel 5665 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 ax-sep 5256 ax-pr 5403 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-sn 4589 df-pr 4591 df-op 4595 df-br 5109 df-opab 5173 df-xp 5666 df-rel 5667 df-cnv 5668 df-dm 5670 df-rn 5671 |
| This theorem is used by: wuncnv 10721 fcnvgreu 33028 trclubgNEW 44372 |
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