Floris van Doorn c1038a3f96 give the definition of the I-ary direct sum		2016-03-31 13:22:45 -04:00
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basic.hlean	use have instead of assert	2016-03-03 11:05:44 -05:00
constructions.hlean	give the definition of the I-ary direct sum	2016-03-31 13:22:45 -04:00