Brian Huffman b03f1ae0c2 Add class Zero with zero :: {a} (Zero a) => a. ... Shift operators also have a `Zero` constraint on the element type.		2017-09-15 16:37:44 -07:00
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Extras.cry	Add class Zero with zero :: {a} (Zero a) => a.	2017-09-15 16:37:44 -07:00