Contains a collection of prop generating functions. The following functions create compares objects that can be mixed together to create a set Algebra.

import set from "can-set";
const algebra = new set.Algebra(
    {

        // ignore this property in set algebra
        sessionId: function() {
            return true;
        }
    },
    set.props.boolean( "completed" ),
    set.props.rangeInclusive( "start", "end" )
);