Metamath Proof Explorer


Theorem brvvdif

Description: Binary relation with the complement under the universal class of ordered pairs. (Contributed by Peter Mazsa, 9-Nov-2018)

Ref Expression
Assertion brvvdif A V B W A V × V R B ¬ A R B

Proof

Step Hyp Ref Expression
1 opelvvdif A V B W A B V × V R ¬ A B R
2 df-br A V × V R B A B V × V R
3 df-br A R B A B R
4 3 notbii ¬ A R B ¬ A B R
5 1 2 4 3bitr4g A V B W A V × V R B ¬ A R B