证明:前提: "x(C(x)®W(x)∧R(x)), $x(C(x)∧Q(x)).结论: $x(Q(x)∧R(x)). 证明:前提: "x(C(x)®W(x)∧R(x)), $x(C(x)∧Q(x)).结论: $x(Q(x)∧R(x)). 发布时间:2025-08-13 19:58:34