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- "use strict";
- Object.defineProperty(exports, "__esModule", { value: true });
- exports.getFunctionBooleanAlgebra = exports.booleanAlgebraBoolean = exports.getDualBooleanAlgebra = exports.booleanAlgebraVoid = exports.reverse = void 0;
- var function_1 = require("./function");
- // -------------------------------------------------------------------------------------
- // combinators
- // -------------------------------------------------------------------------------------
- /**
- * Every boolean algebras has a dual algebra, which involves reversing one/zero as well as join/meet.
- *
- * @since 2.10.0
- */
- var reverse = function (B) { return ({
- meet: function (x, y) { return B.join(x, y); },
- join: function (x, y) { return B.meet(x, y); },
- zero: B.one,
- one: B.zero,
- implies: function (x, y) { return B.join(B.not(x), y); },
- not: B.not
- }); };
- exports.reverse = reverse;
- // -------------------------------------------------------------------------------------
- // instances
- // -------------------------------------------------------------------------------------
- /**
- * @category instances
- * @since 2.0.0
- */
- exports.booleanAlgebraVoid = {
- meet: function () { return undefined; },
- join: function () { return undefined; },
- zero: undefined,
- one: undefined,
- implies: function () { return undefined; },
- not: function () { return undefined; }
- };
- // -------------------------------------------------------------------------------------
- // deprecated
- // -------------------------------------------------------------------------------------
- /**
- * Use [`reverse`](#reverse) instead.
- *
- * @category zone of death
- * @since 2.0.0
- * @deprecated
- */
- exports.getDualBooleanAlgebra = exports.reverse;
- /**
- * Use [`BooleanAlgebra`](./boolean.ts.html#booleanalgebra) instead.
- *
- * @category zone of death
- * @since 2.0.0
- * @deprecated
- */
- exports.booleanAlgebraBoolean = {
- meet: function (x, y) { return x && y; },
- join: function (x, y) { return x || y; },
- zero: false,
- one: true,
- implies: function (x, y) { return !x || y; },
- not: function (x) { return !x; }
- };
- /**
- * Use [`getBooleanAlgebra`](./function.ts.html#getbooleanalgebra) instead.
- *
- * @category zone of death
- * @since 2.0.0
- * @deprecated
- */
- exports.getFunctionBooleanAlgebra = function_1.getBooleanAlgebra;
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