Created
November 29, 2020 20:53
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| person(alice; bob; carol; david). | |
| number(alice, 2). | |
| number(bob, 3). | |
| number(carol, 5). | |
| number(david, 7). | |
| distinct(A, B, C, D) | |
| :- number(A, NA), number(B, NB), number(C, NC), number(D, ND), | |
| NA * NB * NC * ND = 210. |
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