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Diffstat (limited to 'src/algebra/pattern.spad.pamphlet')
| -rw-r--r-- | src/algebra/pattern.spad.pamphlet | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/algebra/pattern.spad.pamphlet b/src/algebra/pattern.spad.pamphlet index fd008b3e..c5a667e6 100644 --- a/src/algebra/pattern.spad.pamphlet +++ b/src/algebra/pattern.spad.pamphlet @@ -255,7 +255,7 @@ Pattern(R:SetCategory): Exports == Implementation where 0 == taggedElt(PAT_ZERO, empty()) p:% ** n:NonNegativeInteger == - p = 0 and n > 0 => 0 + p = 0 and positive? n => 0 p = 1 or zero? n => 1 one? n => p mkPat(constant? p, [[p, n]$REC], 1 + (p.lev)) |