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Declaration
Or
Mathlib.Logic.Iff
Packages
2
Module
63
Theorems
750
Declarations
1016
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Statement
forall (P : Prop), forall (Q : Prop), PropProof term
fun P => fun Q => forall (R : Prop), forall (left : forall (p : P), R), forall (right : forall (q : Q), R), R