以二值命题逻辑的真度理论为基础,提出了基于真度理论的逻辑方程的概念,并给出了此种逻辑方程解的存在性定理,并就τ(A→x)=α的逻辑方程展开了讨论,其中,A是含有,1个原子公式的合式公式,X是待定的公式,A的真度τ(A)=k/2^n,α=m/2^2,且1-τ(A)〈α≤1,我们得到了如下结论:(1)以上逻辑方程的解的等价类个数为Gk^n+k-2^n,2^z^n-k(2)α≠1时,上述方程的解集合是不相容的。(3)解集合中公式的相似度最大值为1-1/2^n,相似度的最小值为|2^n+1-2m-k+/2^n。(4)形如τ((A→X)∧(X→A))=α的逻辑方程其解集合是不相容的。
Based on the theory of the truth degree of proposition logic, the properies of the logic equations which it forms is (A →X) = α were discussed, where A is the given formula contain n previous formulas,x is unknow, the truth degree of A, τ(A)=k/2^n,α=m/2^2,and 1-τ(A)〈α≤1 We get the following results, (1) the number of classicifition of the solution of the above logic equations is (2)when α≠1, the solution set of the above logic equations is inconsistence. (3)The max value of thesimilary degree of the solution set is 1 -1/2^n,The min value of the similary degree of the solution set is |2^n+1-2m-k+/2^n. (4)The set of the solutions of the equivation likes r ((A→X) ∧ (X→A)) = α is not consistent.