Mr Venn, tell me more

The last post explained how restrictive (or defining) relative clauses create a proper subset of a set. In other words, these clauses classify the noun into two: one that is governed by the relative clause definition; the other that is not. But an important...

Mr Venn, will you help us learn some English?

All right, now I got your question – rather, questions. Who’s Mr Venn? Why would he come to teach English? What is he teaching now? Before you inundate me with all those questions, let me tell you about him. John Venn, FRS, FSA (4 August 1834 – 4 April 1923) was...
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