Again, suppose we have to find the Cell assigned to x'ym'. We say to ourselves "x' has the _South_ Half; y has the _West_ portion of that South Half, i.e. has the _South-West Quarter_; and m' has the _Outer_ portion of that South-West Quarter."] The Reader should now get his genial friend to question him on the Table given on the next page, in the style of the following specimen-Dialogue. Q. Adjunct for South Half, Inner Portion? A. x'm. Q. Compartment for m'? A. The Outer Border. Q. Adjunct for North-East Quarter, Outer Portion? A. xy'm'. Q. Compartment for ym? A. West Half, Inner Portion. Q. Adjunct for South Half? A. x'. Q. Compartment for x'y'm? A. South-East Quarter, Inner Portion. &c. &c. pg042 TABLE IV. ·-----------------------------------------------· | Adjunct | | | of | Compartments, or Cells, assigned | | Classes. | to them. | |----------|------------------------------------| | x | North Half. | | x' | South " | | y | West " | | y' | East " | | m | Inner Square. | | m' | Outer Border. | |----------|------------------------------------| | xy | North-West Quarter. | | xy' | " East " | | x'y | South-West " | | x'y' | " East " | | xm | North Half, Inner Portion. | | xm' | " " Outer " | | x'm | South " Inner " | | x'm' | " " Outer " | | ym | West " Inner " | | ym' | " " Outer " | | y'm | East " Inner " | | y'm' | " " Outer " | |----------|------------------------------------| | xym | North-West Quarter, Inner Portion. | | xym' | " " " Outer " | | xy'm | " East " Inner " | | xy'm' | " " " Outer " | | x'ym | South-West " Inner " | | x'ym' | " " " Outer " | | x'y'm | " East " Inner " | | x'y'm' | " " " Outer " | ·-----------------------------------------------· pg043 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._