Symbolical Logic

Abstract

I AM sorry that Mr. MacColl should have thought that there was any intention on my part to suggest a doubt as to his having written his papers without having read Boole's “Laws of Thought.” I knew that he was very anxious that the fact should be known, and I called attention to it. I could not state it as a fact known to me. His own assurance was the only ground I had, or could have, to go upon, and in assigning this it never occurred to me to doubt his statement, or to think that I was suggesting doubts to others.