Metamath Proof Explorer


Theorem pm3.2i

Description: Infer conjunction of premises. Inference associated with pm3.2 . Its associated deduction is jca (and the double deduction is jcad ). (Contributed by NM, 21-Jun-1993)

Ref Expression
Hypotheses pm3.2i.1 𝜑
pm3.2i.2 𝜓
Assertion pm3.2i ( 𝜑𝜓 )

Proof

Step Hyp Ref Expression
1 pm3.2i.1 𝜑
2 pm3.2i.2 𝜓
3 pm3.2 ( 𝜑 → ( 𝜓 → ( 𝜑𝜓 ) ) )
4 1 2 3 mp2 ( 𝜑𝜓 )