Jip J. Dekker
f2a1c4e389
git-subtree-dir: software/mza git-subtree-split: f970a59b177c13ca3dd8aaef8cc6681d83b7e813
9 lines
325 B
MiniZinc
9 lines
325 B
MiniZinc
predicate fzn_inverse_reif(array[int] of var int: f,
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array[int] of var int: invf,
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var bool: b) =
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b <-> forall(i in index_set(f), j in index_set(invf)) (
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f[i] in index_set(invf) /\
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invf[j] in index_set(f) /\
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(j == f[i] <-> i == invf[j])
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);
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