# 5

### Facsimile

### Transcription

4

which the whole of a discussion relates, the

__universe of discourse__.

The system of expression which I have

thus begun to describe will be found to be a

system of diagrams. The mathematicians call

a diagram that is composed mainly of __spots__

of different kinds and __lines__, a __graph__. This system is called a

system of __existential graphs__. In this system,

the spots ~~are~~ may be conveniently differentiated from one another

by words written in them. The consequence is

that a sign of this system is party drawn

and partly written. For brevity, I always say

it is __scribed__. Any sign conforming to the

rules of this system which, if it were

~~written~~ placed on the board or sheet of assertion, would assert

some intelligible state of things to be

true of the universe of discourse, is

called a __graph__. Strictly, I ought to say

an __existential graph__; but for brevity

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