The Problem: What Does Relevance Consist In? Following Relevant Logic, we can avoid Classical Logic’s paradoxes (or at least weirdnesses) of Material Implication, according to which the following statements are true…
1) If Cliff lives in Houston, Texas, then the earth has just one moon
2) If Cliff lives in Orange County, California, then Paris, Texas is the capital of France
…by insisting that the antecedent p be relevant to the consequent q.
But what is it that makes p relevant to q? What is relevance anyhow?
Edit Log: June 04, 2017: Made some minor changes.