Metamath Proof Explorer

Theorem bj-jaoi2

Description: Shortens consensus (110>106), elnn0z (336>329), pm1.2 (20>19), pm3.2ni (43>39), pm4.44 (55>51). (Contributed by BJ, 30-Sep-2019)

Ref Expression
Hypothesis bj-jaoi1.1 
|- ( ph -> ps )
Assertion bj-jaoi2 
|- ( ( ps \/ ph ) -> ps )

Proof

Step Hyp Ref Expression
1 bj-jaoi1.1 
 |-  ( ph -> ps )
2 id 
 |-  ( ps -> ps )
3 2 1 jaoi 
 |-  ( ( ps \/ ph ) -> ps )