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-rw-r--r--src/input/pat.input.pamphlet1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/input/pat.input.pamphlet b/src/input/pat.input.pamphlet
index 2f6535ba..53ff68ca 100644
--- a/src/input/pat.input.pamphlet
+++ b/src/input/pat.input.pamphlet
@@ -14,6 +14,7 @@
-- Input for page PatternMatching
)clear all
+square := operator 'square
rule square(x) == x*x
fact(n | n > 0) == n * fact(n - 1)
fact(0) == 1