|
definition:
|
isNormal :: Term _ -> Bool
isNormal (TermVar _) = True
isNormal (TermCons _ []) = True
isNormal (TermCons c (t:ts)) = case t of
TermVar _ -> all isVarTerm ts
TermCons _ _ -> isNormal t && isNormal (TermCons c ts)
|
|
demand:
|
argument 1
|
|
deterministic:
|
deterministic operation
|
|
documentation:
|
--- Checks whether a term is normal (behind a variable is not a constructor).
|
|
failfree:
|
_
|
|
indeterministic:
|
referentially transparent operation
|
|
infix:
|
no fixity defined
|
|
iotype:
|
{({TermVar}) |-> {True} || ({TermCons}) |-> _}
|
|
name:
|
isNormal
|
|
precedence:
|
no precedence defined
|
|
result-values:
|
_
|
|
signature:
|
Term a -> Prelude.Bool
|
|
solution-complete:
|
operation might suspend on free variables
|
|
terminating:
|
possibly non-terminating
|
|
totally-defined:
|
reducible on all ground data terms
|