@@ -230,6 +230,24 @@ Shape.prototype = Object.assign(new Specializer(), {

   },

 });

+export function Eql(val) {

+  if (!(this instanceof Eql)) {

+    return new Eql(val);

+  }

+  this.val = val;

+}

+Eql.prototype = Object.assign(new Specializer(), {

+  toString() {

+    return `AEql(${this.val})`;

+  },

+  matches(other) {

+    return this.val === other;

+  },

+  super_of(other) {

+    return false;

+  },

+});

+

 // function trace(fun) {

 //     return function (...args) {

 //         console.log(fun, `args are: thsds`, this, 'others', args);