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definition:
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minVarInTRS :: TRS _ -> Maybe VarIdx
minVarInTRS trs = case mapMaybe minVarInRule trs of
[] -> Nothing
vs@(_:_) -> Just (minimum vs)
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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 minimum variable in a term rewriting system or `Nothing` if no
--- variable 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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{(_) |-> {Just,Nothing}}
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name:
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minVarInTRS
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precedence:
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no precedence defined
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result-values:
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{Just,Nothing}
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signature:
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[(Rewriting.Term.Term a, Rewriting.Term.Term a)] -> Prelude.Maybe Prelude.Int
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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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