Can someone explain what this clause means in prolog? Specifically the =:=. beside(X,Y) :- X =:=...

Question

Question

Can someone explain what this clause means in prolog? Specifically the =:=.

beside(X,Y) :- X =:= Y-1.?

engineering Computer-Science

Answer 1

Answer #1

X =:= Y-1 Succeeds if values of X and Y-1 are equal.

Here, X and Y can be equations. It evaluates the equations X and Y and then compare the results.

Answer 2

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