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<oerjan> learn An intersection is the opposite of an inverbosection.
author | HackBot |
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date | Thu, 13 Oct 2016 00:27:10 +0000 |
parents | 561c5f0d6b8b |
children |
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The bicyclic monoid is the free monoid generated by two wheels of a bicycle, quotiented by the restriction that the bicycle itself is equal to the identity.