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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 39365). (Contributed by Peter Mazsa, 31-Dec-2021.) |
| Ref | Expression |
|---|---|
| det0 | ⊢ ( Disj ∅ ↔ EqvRel ≀ ∅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | disjALTV0 39365 | . 2 ⊢ Disj ∅ | |
| 2 | 1 | detlem 39397 | 1 ⊢ ( Disj ∅ ↔ EqvRel ≀ ∅) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 209 ∅c0 4288 ≀ ccoss 38694 EqvRel weqvrel 38711 Disj wdisjALTV 38730 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5251 ax-pr 5395 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ral 3080 df-rex 3090 df-rab 3418 df-v 3459 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-sn 4586 df-pr 4588 df-op 4592 df-br 5106 df-opab 5168 df-id 5547 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-coss 39012 df-refrel 39103 df-cnvrefrel 39118 df-symrel 39135 df-trrel 39169 df-eqvrel 39180 df-disjALTV 39301 |
| This theorem is referenced by: (None) |
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