Metamath Proof Explorer


Theorem nfimt

Description: Closed form of nfim and nfimd . (Contributed by BJ, 20-Oct-2021) Eliminate curried form, former name nfimt2. (Revised by Wolf Lammen, 6-Jul-2022)

Ref Expression
Assertion nfimt xφxψxφψ

Proof

Step Hyp Ref Expression
1 simpl xφxψxφ
2 simpr xφxψxψ
3 1 2 nfimd xφxψxφψ