| Mathbox for Peter Mazsa |
< Previous
Next >
Nearby theorems |
||
| 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 39354 | . . 3 ⊢ Disj I | |
| 2 | 1 | disjimi 39384 | . 2 ⊢ EqvRel ≀ I |
| 3 | cossid 39069 | . . 3 ⊢ ≀ I = I | |
| 4 | 3 | eqvreleqi 39186 | . 2 ⊢ ( EqvRel ≀ I ↔ EqvRel I ) |
| 5 | 2, 4 | mpbi 232 | 1 ⊢ EqvRel I |
| Colors of variables: wff setvar class |
| Syntax hints: I cid 5541 ≀ ccoss 38682 EqvRel weqvrel 38699 |
| 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-10 2175 ax-11 2191 ax-12 2212 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-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 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-refrel 39091 df-cnvrefrel 39106 df-symrel 39123 df-trrel 39157 df-eqvrel 39168 df-disjALTV 39289 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |