diff options
Diffstat (limited to 'src/algebra/boolean.spad.pamphlet')
| -rw-r--r-- | src/algebra/boolean.spad.pamphlet | 50 |
1 files changed, 26 insertions, 24 deletions
diff --git a/src/algebra/boolean.spad.pamphlet b/src/algebra/boolean.spad.pamphlet index a87b4c9b..6bf5188e 100644 --- a/src/algebra/boolean.spad.pamphlet +++ b/src/algebra/boolean.spad.pamphlet @@ -472,40 +472,42 @@ Boolean(): Join(OrderedFinite, Logic, PropositionalLogic, ConvertibleTo InputFor test: % -> % ++ test(b) returns b and is provided for compatibility with the new compiler. == add - import EQ: (%,%) -> Boolean from Foreign Builtin - import AND: (%,%) -> % from Foreign Builtin - import OR: (%,%) -> % from Foreign Builtin - import NOT: % -> % from Foreign Builtin + import %false: % from Foreign Builtin + import %true: % from Foreign Builtin + import %eq: (%,%) -> Boolean from Foreign Builtin + import %and: (%,%) -> % from Foreign Builtin + import %or: (%,%) -> % from Foreign Builtin + import %not: % -> % from Foreign Builtin test a == a - true == 'T pretend % - false == NIL$Foreign(Builtin) - sample() == true - not b == NOT b - ~ b == NOT b - a and b == AND(a,b) - a /\ b == AND(a,b) - a or b == OR(a,b) - a \/ b == OR(a,b) - xor(a, b) == (a => NOT b; b) - nor(a, b) == (a => false; NOT b) - nand(a, b) == (a => NOT b; true) - a = b == EQ(a, b) - implies(a, b) == (a => b; true) - equiv(a,b) == EQ(a, b) - a < b == (b => NOT a; false) + true == %true + false == %false + sample() == %true + not b == %not b + ~b == %not b + a and b == %and(a,b) + a /\ b == %and(a,b) + a or b == %or(a,b) + a \/ b == %or(a,b) + xor(a, b) == (a => %not b; b) + nor(a, b) == (a => %false; %not b) + nand(a, b) == (a => %not b; %true) + a = b == %eq(a,b) + implies(a, b) == (a => b; %true) + equiv(a,b) == %eq(a, b) + a < b == (b => %not a; %false) size() == 2 index i == - even?(i::Integer) => false - true + even?(i::Integer) => %false + %true lookup a == a => 1 2 random() == - even?(random()$Integer) => false - true + even?(random()$Integer) => %false + %true convert(x:%):InputForm == x => 'true |