Logical validity

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  1. P.D. Magnus
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I downloaded " Forallx: an introduction to Formal Logic" to my Kindle. I wanted a clear, beginner's guide to the subject. The book delivers. I was familiar with some philosophy, but baffled by the notation in logic. I won't crack Frege, Russell and Wittgenstein in a day; but Magnus gives a reader friendly lift up. A great read.

StephenSwaine