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-rw-r--r--src/algebra/boolean.spad.pamphlet5
1 files changed, 1 insertions, 4 deletions
diff --git a/src/algebra/boolean.spad.pamphlet b/src/algebra/boolean.spad.pamphlet
index 11a8dd35..ab33ba62 100644
--- a/src/algebra/boolean.spad.pamphlet
+++ b/src/algebra/boolean.spad.pamphlet
@@ -356,7 +356,7 @@ Logic: Category == BasicType with
++ Author: Stephen M. Watt
++ Date Created:
++ Change History:
-++ Basic Operations: true, false, not, and, or, xor, nand, nor, implies, ^
+++ Basic Operations: true, false, not, and, or, xor, nand, nor, implies
++ Related Constructors:
++ Keywords: boolean
++ Description: \spadtype{Boolean} is the elementary logic with 2 values:
@@ -367,8 +367,6 @@ Boolean(): Join(OrderedSet, Finite, Logic, PropositionalLogic, ConvertibleTo Inp
++ true is a logical constant.
false: %
++ false is a logical constant.
- _^ : % -> %
- ++ ^ n returns the negation of n.
xor : (%, %) -> %
++ xor(a,b) returns the logical exclusive {\em or}
++ of Boolean \spad{a} and b.
@@ -388,7 +386,6 @@ Boolean(): Join(OrderedSet, Finite, Logic, PropositionalLogic, ConvertibleTo Inp
false == NIL$Lisp
sample() == true
not b == (b => false; true)
- _^ b == (b => false; true)
_~ b == (b => false; true)
_and(a, b) == (a => b; false)
_/_\(a, b) == (a => b; false)