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| Mirrors > Home > MPE Home > Th. List > Mathboxes > det0 | Structured version Visualization version GIF version | ||
| Description: The cosets by the null class are in equivalence relation if and only if the null class is disjoint (which it is, see disjALTV0 39186). (Contributed by Peter Mazsa, 31-Dec-2021.) |
| Ref | Expression |
|---|---|
| det0 | ⊢ ( Disj ∅ ↔ EqvRel ≀ ∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | disjALTV0 39186 | . 2 ⊢ Disj ∅ | |
| 2 | 1 | detlem 39218 | 1 ⊢ ( Disj ∅ ↔ EqvRel ≀ ∅) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∅c0 4274 ≀ ccoss 38515 EqvRel weqvrel 38532 Disj wdisjALTV 38551 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-pr 5368 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-br 5087 df-opab 5149 df-id 5517 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-coss 38833 df-refrel 38924 df-cnvrefrel 38939 df-symrel 38956 df-trrel 38990 df-eqvrel 39001 df-disjALTV 39122 |
| This theorem is referenced by: (None) |
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