This introductory chapter begins with a brief overview of the knowability paradox — a paradox deriving from a proof that if all truths are knowable, then all truths are known — which was first published by Frederic Fitch in 1963. It cites the relative obscurity of the proof and paradox since its publication, and identifies the two problems created by Fitch’s proof. The chapters included in this volume are then described. Keywords:knowability paradox,
Frederic Fitch,
proof,
truth