Based on the definition and properties of axiomatic truth degree in first-order predicate logic,this paper studies the truth degree of formulas in K* predicate calculus system.The operation properties of axiomatic truth degree containing quantifiers,intersection operator and implication operator are analyzed.The methods of converting truth degree of complex formulas into the truth degree of several simple formulas are given.
K*∀ predicate calculus systemaxiomatic truth degreetruth degree