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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 39220 | . . 3 ⊢ ≀ ◡ I = I | |
| 2 | 1 | eqimssi 3997 | . 2 ⊢ ≀ ◡ I ⊆ I |
| 3 | reli 5813 | . 2 ⊢ Rel I | |
| 4 | dfdisjALTV2 39448 | . 2 ⊢ ( Disj I ↔ ( ≀ ◡ I ⊆ I ∧ Rel I )) | |
| 5 | 2, 3, 4 | mpbir2an 723 | 1 ⊢ Disj I |
| Colors of variables: wff setvar class |
| Syntax hints: ⊆ wss 3905 I cid 5555 ◡ccnv 5660 Rel wrel 5666 ≀ ccoss 38832 Disj wdisjALTV 38868 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-11 2192 ax-ext 2735 ax-sep 5257 ax-pr 5404 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-sn 4590 df-pr 4592 df-op 4596 df-br 5110 df-opab 5174 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-coss 39150 df-cnvrefrel 39256 df-disjALTV 39439 |
| This theorem is referenced by: disjALTVidres 39505 disjALTVinidres 39506 disjALTVxrnidres 39507 eqvrelid 39541 detid 39545 eqvrelcossid 39546 petid2 39568 |
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