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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 39769 | . . 3 ⊢ ≀ ◡ I = I | |
| 2 | 1 | eqimssi 3973 | . 2 ⊢ ≀ ◡ I ⊆ I |
| 3 | reli 5814 | . 2 ⊢ Rel I | |
| 4 | dfdisjALTV2 39997 | . 2 ⊢ ( Disj I ↔ ( ≀ ◡ I ⊆ I ∧ Rel I )) | |
| 5 | 2, 3, 4 | mpbir2an 724 | 1 ⊢ Disj I |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3900 I cid 5552 ◡ccnv 5657 Rel wrel 5663 ≀ ccoss 39381 Disj wdisjALTV 39417 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-11 2197 ax-ext 2735 ax-sep 5255 ax-pr 5398 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-br 5109 df-opab 5174 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-coss 39699 df-cnvrefrel 39805 df-disjALTV 39988 |
| This theorem is used by: disjALTVidres 40054 disjALTVinidres 40055 disjALTVxrnidres 40056 eqvrelid 40090 detid 40094 eqvrelcossid 40095 petid2 40117 |
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