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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 5970 | . . 3 ⊢ Rel ◡𝐴 | |
2 | relssdmrn 6124 | . . 3 ⊢ (Rel ◡𝐴 → ◡𝐴 ⊆ (dom ◡𝐴 × ran ◡𝐴)) | |
3 | 1, 2 | ax-mp 5 | . 2 ⊢ ◡𝐴 ⊆ (dom ◡𝐴 × ran ◡𝐴) |
4 | df-rn 5569 | . . 3 ⊢ ran 𝐴 = dom ◡𝐴 | |
5 | dfdm4 5767 | . . 3 ⊢ dom 𝐴 = ran ◡𝐴 | |
6 | 4, 5 | xpeq12i 5586 | . 2 ⊢ (ran 𝐴 × dom 𝐴) = (dom ◡𝐴 × ran ◡𝐴) |
7 | 3, 6 | sseqtrri 4007 | 1 ⊢ ◡𝐴 ⊆ (ran 𝐴 × dom 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: ⊆ wss 3939 × cxp 5556 ◡ccnv 5557 dom cdm 5558 ran crn 5559 Rel wrel 5563 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-sep 5206 ax-nul 5213 ax-pr 5333 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ral 3146 df-rex 3147 df-rab 3150 df-v 3499 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-nul 4295 df-if 4471 df-sn 4571 df-pr 4573 df-op 4577 df-br 5070 df-opab 5132 df-xp 5564 df-rel 5565 df-cnv 5566 df-dm 5568 df-rn 5569 |
This theorem is referenced by: wuncnv 10155 fcnvgreu 30421 trclubgNEW 39984 |
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