Prolog規則反映結構

Question

我需要設計一個測試貸款是否為汽車貸款的規則。

carLoan(flexiCar,minLoanAmount(20000),maxTenure(12) ).
iscarloan(X, Y, Z) :- carLoan(X, Y >= minLoanAmount(20000), Z =<(maxTenure(12)) ).
iscarloan(X, 25000, 10).

我需要根據規則中的事實對結構的Y和Z變量進行測試。

如何實現呢？

謝謝。

Answer 1

iscarloan(X, Y, Z) :-
  carLoan(X, minLoanAmount(MinLoan), maxTenure(MaxTenure)),
  Y >= MinLoan,
  Z =< MaxTenure.

那是您的想法嗎？

Answer 2

carLoan(flexiCar, minLoanAmount(20000), maxTenure(12)).

iscarloan(X, Y, Z) :-
    Y = minLoanAmount(MLA),
    Z = maxTenure(MT),
    MLAN is MLA,
    MTN is MT,
    MLAN >= 20000,
    MTN =< 12.

iscarloan(X, 25000, 10).