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Mirrors > Home > MPE Home > Th. List > Mathboxes > eqvrelid | Structured version Visualization version GIF version |
Description: The identity relation is an equivalence relation. (Contributed by Peter Mazsa, 15-Apr-2019.) (Revised by Peter Mazsa, 31-Dec-2021.) |
Ref | Expression |
---|---|
eqvrelid | ⊢ EqvRel I |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | disjALTVid 36969 | . . 3 ⊢ Disj I | |
2 | 1 | disjimi 36996 | . 2 ⊢ EqvRel ≀ I |
3 | cossid 36694 | . . 3 ⊢ ≀ I = I | |
4 | 3 | eqvreleqi 36817 | . 2 ⊢ ( EqvRel ≀ I ↔ EqvRel I ) |
5 | 2, 4 | mpbi 229 | 1 ⊢ EqvRel I |
Colors of variables: wff setvar class |
Syntax hints: I cid 5499 ≀ ccoss 36381 EqvRel weqvrel 36398 |
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 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2707 ax-sep 5232 ax-nul 5239 ax-pr 5361 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ral 3062 df-rex 3071 df-rab 3333 df-v 3439 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-nul 4263 df-if 4466 df-sn 4566 df-pr 4568 df-op 4572 df-br 5082 df-opab 5144 df-id 5500 df-xp 5606 df-rel 5607 df-cnv 5608 df-co 5609 df-dm 5610 df-rn 5611 df-res 5612 df-coss 36625 df-refrel 36726 df-cnvrefrel 36741 df-symrel 36758 df-trrel 36788 df-eqvrel 36799 df-disjALTV 36919 |
This theorem is referenced by: (None) |
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