| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > cnvssrndm | 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 5114 | . . 3 ⊢ Rel ◡𝐴 | |
| 2 | relssdmrn 5257 | . . 3 ⊢ (Rel ◡𝐴 → ◡𝐴 ⊆ (dom ◡𝐴 × ran ◡𝐴)) | |
| 3 | 1, 2 | ax-mp 5 | . 2 ⊢ ◡𝐴 ⊆ (dom ◡𝐴 × ran ◡𝐴) |
| 4 | df-rn 4736 | . . 3 ⊢ ran 𝐴 = dom ◡𝐴 | |
| 5 | dfdm4 4923 | . . 3 ⊢ dom 𝐴 = ran ◡𝐴 | |
| 6 | 4, 5 | xpeq12i 4747 | . 2 ⊢ (ran 𝐴 × dom 𝐴) = (dom ◡𝐴 × ran ◡𝐴) |
| 7 | 3, 6 | sseqtrri 3262 | 1 ⊢ ◡𝐴 ⊆ (ran 𝐴 × dom 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: ⊆ wss 3200 × cxp 4723 ◡ccnv 4724 dom cdm 4725 ran crn 4726 Rel wrel 4730 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 df-opab 4151 df-xp 4731 df-rel 4732 df-cnv 4733 df-dm 4735 df-rn 4736 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |