Theorem eqvrel1cossinidres 38749

Description: The cosets by an intersection with a restricted identity relation are in equivalence relation. (Contributed by Peter Mazsa, 31-Dec-2021.)

Assertion

Ref	Expression
eqvrel1cossinidres	⊢ EqvRel ≀ (𝑅 ∩ ( I ↾ 𝐴))

Proof of Theorem eqvrel1cossinidres

Step	Hyp	Ref	Expression
1		disjALTVinidres 38715	. 2 ⊢ Disj (𝑅 ∩ ( I ↾ 𝐴))
2	1	disjimi 38740	1 ⊢ EqvRel ≀ (𝑅 ∩ ( I ↾ 𝐴))

Syntax hints:   ∩ cin 3975   I cid 5592   ↾ cres 5702   ≀ ccoss 38137   EqvRel weqvrel 38154

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1793  ax-4 1807  ax-5 1909  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2158  ax-12 2178  ax-ext 2711  ax-sep 5317  ax-nul 5324  ax-pr 5447

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 847  df-3an 1089  df-tru 1540  df-fal 1550  df-ex 1778  df-nf 1782  df-sb 2065  df-mo 2543  df-eu 2572  df-clab 2718  df-cleq 2732  df-clel 2819  df-nfc 2895  df-ral 3068  df-rex 3077  df-rab 3444  df-v 3490  df-dif 3979  df-un 3981  df-in 3983  df-ss 3993  df-nul 4353  df-if 4549  df-sn 4649  df-pr 4651  df-op 4655  df-br 5167  df-opab 5229  df-id 5593  df-xp 5706  df-rel 5707  df-cnv 5708  df-co 5709  df-dm 5710  df-rn 5711  df-res 5712  df-coss 38369  df-refrel 38470  df-cnvrefrel 38485  df-symrel 38502  df-trrel 38532  df-eqvrel 38543  df-funALTV 38640  df-disjALTV 38663

This theorem is referenced by: (None)