Metamath Proof Explorer


Theorem bnj1364

Description: Property of _FrSe . (Contributed by Jonathan Ben-Naim, 3-Jun-2011) (New usage is discouraged.)

Ref Expression
Assertion bnj1364 R FrSe A R Se A

Proof

Step Hyp Ref Expression
1 df-bnj15 R FrSe A R Fr A R Se A
2 1 simprbi R FrSe A R Se A