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| Mirrors > Home > MPE Home > Th. List > Mathboxes > disjALTVid | Structured version Visualization version GIF version | ||
| Description: The class of identity relations is disjoint. (Contributed by Peter Mazsa, 20-Jun-2021.) |
| Ref | Expression |
|---|---|
| disjALTVid | ⊢ Disj I |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cosscnvid 39070 | . . 3 ⊢ ≀ ◡ I = I | |
| 2 | 1 | eqimssi 3996 | . 2 ⊢ ≀ ◡ I ⊆ I |
| 3 | reli 5799 | . 2 ⊢ Rel I | |
| 4 | dfdisjALTV2 39298 | . 2 ⊢ ( Disj I ↔ ( ≀ ◡ I ⊆ I ∧ Rel I )) | |
| 5 | 2, 3, 4 | mpbir2an 721 | 1 ⊢ Disj I |
| Colors of variables: wff setvar class |
| Syntax hints: ⊆ wss 3904 I cid 5541 ◡ccnv 5646 Rel wrel 5652 ≀ ccoss 38682 Disj wdisjALTV 38718 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-11 2191 ax-ext 2734 ax-sep 5246 ax-pr 5390 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-sb 2091 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3077 df-rex 3087 df-rab 3415 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-sn 4583 df-pr 4585 df-op 4589 df-br 5101 df-opab 5163 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-coss 39000 df-cnvrefrel 39106 df-disjALTV 39289 |
| This theorem is referenced by: disjALTVidres 39355 disjALTVinidres 39356 disjALTVxrnidres 39357 eqvrelid 39391 detid 39395 eqvrelcossid 39396 petid2 39418 |
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