  One of the Quine’s most widely cited arguments (1936), directed against a crude conventionalism about logic, traces back to Lewis Carroll. There are infinitely many logical truths. Human beings are finite, so we can explicitly stipulate only a finite number of statements. Thus, in generating all the logical truths we must eventually apply rules of inference to finitely many conventionally stipulated statements. But then we are employing logic to derive logic from convention, generating a vicious regress. Quine’s point here is not just that logic did not in fact come into existence through conventional truth assignment. His point is that it could not have thus come into existence.