more from Duncan Pritchard

Single Idea 19504

[catalogued under 2. Reason / E. Argument / 1. Argument]

Full Idea

One philosopher's modus ponens is another philosopher's modus tollens.

Gist of Idea

My modus ponens might be your modus tollens

Source

Duncan Pritchard (Epistemological Disjunctivism [2012], 3.2)

Book Reference

Pritchard,Duncan: 'Epistemological Disjunctivism' [OUP 2012], p.114


A Reaction

[Anyone know the originator of this nice thought?] You say A is true, and A proves B, so B is true. I reply that if A proves something as daft as B, then so much the worse for A. Ain't it the truth?