Casual Introduction (cont.)

In Figure 3 we saw how the basis of description for the universe of discourse could be extended to a set of two qualities while the corresponding terms of description could be extended to an alphabet of two symbols

Any propositional calculus over two basic propositions allows for the expression of 16 propositions all together.  Salient among those propositions in the present setting are the four which single out the individual sample points at the initial moment of observation.  Table 4 lists the initial state descriptions, using overlines to express logical negations.

Resources

• Logic Syllabus
• Survey of Differential Logic

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