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Theorem det0 38752
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 38719). (Contributed by Peter Mazsa, 31-Dec-2021.)
Assertion
Ref Expression
det0 ( Disj ∅ ↔ EqvRel ≀ ∅)

Proof of Theorem det0
StepHypRef Expression
1 disjALTV0 38719 . 2 Disj ∅
21detlem 38748 1 ( Disj ∅ ↔ EqvRel ≀ ∅)
Colors of variables: wff setvar class
Syntax hints:  wb 206  c0 4292  ccoss 38142   EqvRel weqvrel 38159   Disj wdisjALTV 38176
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 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-sep 5246  ax-nul 5256  ax-pr 5382
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ral 3045  df-rex 3054  df-rab 3403  df-v 3446  df-dif 3914  df-un 3916  df-in 3918  df-ss 3928  df-nul 4293  df-if 4485  df-sn 4586  df-pr 4588  df-op 4592  df-br 5103  df-opab 5165  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-coss 38375  df-refrel 38476  df-cnvrefrel 38491  df-symrel 38508  df-trrel 38538  df-eqvrel 38549  df-disjALTV 38670
This theorem is referenced by: (None)
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