Mamet, like one of his characters, invents a labyrinthine, convoluted spiel leading nowhere, and like a magician distracts us with his words while elaborately not producing a rabbit from his hat.

When we examine common words, we find that, broadly speaking, proper names stand for particulars, while other substantives, adjectives, prepositions, and verbs stand for universals.

Billie Jean King said Friday that the Australian Open’s Margaret Court Arena should have its name changed because of Court’s derogatory comments about gay and transgender people.

We do this for reduced rings in Corollary 10, and for rings with nonzero nilpotents in Corollary 15.