"

'=Converse=' Propositions, and '=Conversion=' "

Three other similar Trios 32

The Proposition "No x are y" "

Three other similar Propositions "

The Proposition "No y are x" "

Three other similar Propositions "

Trio of equivalent Propositions, viz.
"No xy exist" = "No x are y" = "No y are x" 33

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 |---|---|