Theorem brparts

Description: Binary partitions relation. (Contributed by Peter Mazsa, 23-Jul-2021)

	Ref	Expression
Assertion	brparts	Could not format assertion : No typesetting found for |- ( A e. V -> ( R Parts A <-> ( R e. Disjs /\ R DomainQss A ) ) ) with typecode |-

Proof

Step	Hyp	Ref	Expression
1		df-parts	Could not format Parts = ( DomainQss |` Disjs ) : No typesetting found for |- Parts = ( DomainQss |` Disjs ) with typecode |-
2	1	eqres	Could not format ( A e. V -> ( R Parts A <-> ( R e. Disjs /\ R DomainQss A ) ) ) : No typesetting found for |- ( A e. V -> ( R Parts A <-> ( R e. Disjs /\ R DomainQss A ) ) ) with typecode |-