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