• 2022-06-07
    公式"x ( F(x,y,z ) → "y ( G(x,y,z) → "z H(x,y,z) ) )的前束范式为
    A: "x$y$z (F(x,t,w) → ( G(x,y,w ) → H(x,y,z) ) )
    B: $x$y$z (F(x,t,w) → ( G(x,y,w ) → H(x,y,z) ) )
    C: "x"y$z (F(x,t,w) → ( G(x,y,w ) → H(x,y,z) ) )
    D: "x$y"z (F(x,t,w) → ( G(x,y,w ) → H(x,y,z) ) )