"My goto guy for double checking my logic reminds me that I am relying on relevance logic without having explained relevance logic to people who are relying on classical logic. So he indicates I am in the wrong for assuming everyone would be on the same page. Assumptions are wrong in logic." was marvelous (and the apology following is a pragmatic matter; social lubricants are useful tools) So: Relevance Logic is Logic. Classical Logic is Logic. Relevance Logic is Classical Logic. tongue emoticon .