Three other similar Trios " The Proposition "All x are y" is _Double_, and is equivalent to the two Propositions "Some x are y" and "No x are _y'_" " Seven other similar Propositions 34 =Tables II, III.= Representation of Propositions of Existence and Relation 34, 35 CHAPTER IV. _INTERPRETATION OF BILITERAL DIAGRAM, WHEN MARKED WITH COUNTERS._ ·-------· |(.)| | Interpretation of |---|---| 36 | | | ·-------· And of three other similar arrangements " pg-xxii ·-------· |( )| | Interpretation of |---|---| " | | | ·-------· And of three other similar arrangements " ·-------· | (.) | Interpretation of |---|---| 37 | | | ·-------· And of three other similar arrangements " ·-------· |(.)|(.)| Interpretation of |---|---| " | | | ·-------· And of three other similar arrangements " ·-------· |( )|( )| Interpretation of |---|---| " | | | ·-------· And of three other similar arrangements " ·-------· |(.)|( )| Interpretation of |---|---| " | | | ·-------· And of seven other similar arrangements 38 =BOOK IV.= =THE TRILITERAL DIAGRAM.= CHAPTER I. _SYMBOLS AND CELLS._ Change of Biliteral into Triliteral Diagram 39 The xy-Class subdivided into 'the xym-Class' and 'the xym'-Class' 40 pg-xxiii The Inner and Outer Cells of the North-West Quarter assigned to these Classes " The xy'-Class, the x'y-Class, and the x'y'-Class similarly subdivided " The Inner and Outer Cells of the North-East, the South-West, and the South-East Quarter similarly assigned " The Inner Square and the Outer Border have thus been assigned to 'the m-Class' and 'the _m'_-Class' " Rules for finding readily the Compartment, or Cell, assigned to any given Attribute or Attributes "