=Table IV.= Attributes of Classes, and Compartments, or Cells, assigned to them 42 CHAPTER II. _REPRESENTATION OF PROPOSITIONS IN TERMS OF x AND m, OR OF y AND m._ § 1. _Representation of Propositions of Existence in terms of x and m, or of y and m._ The Proposition "Some xm exist" 43 Seven other similar Propositions " The Proposition "No xm exist" 44 Seven other similar Propositions " § 2. _Representation of Propositions of Relation in terms of x and m, or of y and m._ The Pair of Converse Propositions "Some x are m" = "Some m are x" " Seven other similar Pairs " The Pair of Converse Propositions "No x are m" = "No m are x" " Seven other similar Pairs " The Proposition "All x are m" 45 Fifteen other similar Propositions " =Tables V, VI, VII, VIII.= Representations of Propositions in terms of x and m, or of y and m 46 to 49 pg-xxiv CHAPTER III. _REPRESENTATION OF TWO PROPOSITIONS OF RELATION, ONE IN TERMS OF x AND m, AND THE OTHER IN TERMS OF y AND m, ON THE SAME DIAGRAM._ The Digits "I" and "O" to be used instead of Red and Grey Counters 50 Rules " Examples worked " CHAPTER IV. _INTERPRETATION, IN TERMS OF x AND y, OF TRILITERAL DIAGRAM, WHEN MARKED WITH COUNTERS OR DIGITS._ Rules 53 Examples worked 54 =BOOK V.= =SYLLOGISMS.= CHAPTER I. _INTRODUCTORY._ '=Syllogism=' 56 '=Premisses=' " '=Conclusion=' " '=Eliminands=' 57 '=Retinends=' " '=Consequent=' " The Symbol ".'." " Specimen-Syllogisms " pg-xxv CHAPTER II. _PROBLEMS IN SYLLOGISMS._ § 1. _Introductory._ '=Concrete=' and '=Abstract=' Propositions 59 Method of translating a Proposition from concrete into abstract form "