e/Logic alphabet

Information
has gloss	eng: The logic alphabet constitutes an iconic set of symbols that systematically represents the sixteen possible binary truth functions of logic. The logic alphabet was developed by Dr. Shea Zellweger. Dr. Zellweger, now retired, was Chair of the Psychology Department for Mount Union College and served as a Professor of Experimental Psychology for over twenty five years. He has numerous published articles and has been a keynote speaker on human notation and sign system engineering at various semiotic symposiums. The major emphasis of his iconic "logic alphabet" is to provide a more cognitively ergonomic notation for logic. Dr. Zellweger's visually iconic system more readily reveals, to the novice and expert alike, the underlying symmetry relationships and geometric properties of the sixteen binary connectives within Boolean algebra.
lexicalization	eng: logic alphabet
instance of	(noun) an operation that follows the rules of Boolean algebra; each operand and the result take one of two values binary arithmetic operation, boolean operation, binary operation