Tautologies Quotes
- The principles of logic and mathematics are true universally simply because we never allow them to be anything else. And the reason for this is… — A.J. Ayer
- The positivists have a simple solution: the world must be divided into that which we can say clearly and the rest, which we had better… — Werner Heisenberg
- Propositions show what they say: tautologies and contradictions show that they say nothing. — Ludwig Wittgenstein
- Logic issues in tautologies, mathematics in identities, philosophy in definitions; all trivial, but all part of the vital work of clarifying and organising our thought. — Frank P. Ramsey
- All correct reasoning is a grand system of tautologies, but only God can make direct use of that fact. — Herbert Simon
- A logic proof is: you get a starting point and an ending point, and you have to get there through all these different steps and… — Heidi Julavits