P Q R ¬(P ∧ Q) ∨ (R ∧ ¬P)T T T FT T F FT F T TT F F TF T T TF T F TF F T TF F F T

27.

p q r ¬(p ∧ q) ∨ (r ∧ ¬p)

T T T F

T T F F

T F T T

T F F T

F T T T

F T F T

F F T T

F F F T