<span class="searchmatch">pregroupoids</span> plural of <span class="searchmatch">pregroupoid</span>...
From pre- + groupoid. <span class="searchmatch">pregroupoid</span> (plural <span class="searchmatch">pregroupoids</span>) (category theory) A category together with its inversion. 2015, Marino Gran, Diana Rodelo, “Beck-Chevalley...
groupoid with only one object. [...] groupoidal hypergroupoid loopoid <span class="searchmatch">pregroupoid</span> subgroupoid zroupoid a magma a set with a partial binary operation.....