| definition: |
isPlVar :: PlTerm -> Bool
isPlVar pterm = case pterm of PlVar _ -> True
_ -> False
|
| demand: |
argument 1 |
| deterministic: |
deterministic operation |
| documentation: |
--- Is a Prolog term a variable? |
| failfree: |
_ |
| indeterministic: |
referentially transparent operation |
| infix: |
no fixity defined |
| iotype: |
{({PlVar}) |-> {True} || ({PlAtom}) |-> _ || ({PlInt}) |-> _ || ({PlFloat}) |-> _ || ({PlStruct}) |-> _}
|
| name: |
isPlVar |
| precedence: |
no precedence defined |
| result-values: |
{False,True}
|
| signature: |
Language.Prolog.Types.PlTerm -> Prelude.Bool |
| solution-complete: |
operation might suspend on free variables |
| terminating: |
yes |
| totally-defined: |
reducible on all ground data terms |