Equality, Symbol of, [189]–91.
Equations in Logic, [189]–91; their types, [191]–4;.expression of propositions as equations, [194].
Equipollent Propositions, [117].
Equivalent Propositions, [117]; tables of equivalent propositions, [141]; [146]; [208]; [481].
Equivalent Terms, Table of, [476].
Equivocal Term, [65].
Essential Proposition, [50].
Etymology and Connotation, [28].
Euler’s diagrams, five-fold scheme, [157]–62; seven-fold scheme, [170]–4; their application to the 542 quantification of the predicate, [200]–4; to syllogistic reasonings, [288], [341]–4.