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definition:
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lookupSubst :: Subst f -> VarIdx -> Maybe (Term f)
lookupSubst = flip Map.lookup
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demand:
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no demanded arguments
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deterministic:
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deterministic operation
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documentation:
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--- Returns the term mapped to the given variable in a substitution or
--- `Nothing` if no such mapping exists.
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failfree:
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()
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indeterministic:
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referentially transparent operation
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infix:
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no fixity defined
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iotype:
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{() |-> {flip}}
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name:
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lookupSubst
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precedence:
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no precedence defined
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result-values:
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{flip}
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signature:
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Data.Map.Map Prelude.Int (Rewriting.Term.Term a) -> Prelude.Int
-> Prelude.Maybe (Rewriting.Term.Term a)
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solution-complete:
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operation might suspend on free variables
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terminating:
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possibly non-terminating
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totally-defined:
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possibly non-reducible on same data term
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