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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 37206 | . . 3 ⊢ Disj I | |
2 | 1 | disjimi 37233 | . 2 ⊢ EqvRel ≀ I |
3 | cossid 36931 | . . 3 ⊢ ≀ I = I | |
4 | 3 | eqvreleqi 37054 | . 2 ⊢ ( EqvRel ≀ I ↔ EqvRel I ) |
5 | 2, 4 | mpbi 229 | 1 ⊢ EqvRel I |
Colors of variables: wff setvar class |
Syntax hints: I cid 5529 ≀ ccoss 36623 EqvRel weqvrel 36640 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-sep 5255 ax-nul 5262 ax-pr 5383 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2888 df-ral 3064 df-rex 3073 df-rab 3407 df-v 3446 df-dif 3912 df-un 3914 df-in 3916 df-ss 3926 df-nul 4282 df-if 4486 df-sn 4586 df-pr 4588 df-op 4592 df-br 5105 df-opab 5167 df-id 5530 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-coss 36862 df-refrel 36963 df-cnvrefrel 36978 df-symrel 36995 df-trrel 37025 df-eqvrel 37036 df-disjALTV 37156 |
This theorem is referenced by: (None) |
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