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jeffdown1 at Jan 21, 2017 09:17 PM

67

Logic
III
67

image of logic diagram

This gives, since we can by Rules I and III insert
what we please within odd enclosures, gives


Then by deiteration we get

image of logic diagram

This, on substituting what a and b represent, becomes

image of logic diagram

By Rule II we can now put two ovals round 'rejects' and using only
the initial letters, and also not writing the regularity ?? which makes it needless
indicating their outermost points, we have

67

Logic
III
67


This gives, since we can by Rules I and III insert
what we please within odd enclosures, gives


Then by deiteration we get

This, on substituting what a and b represent, becomes

By Rule II we can now put two ovals round 'rejects' and using only
the initial letters, and also not writing the regularity ?? which makes it needless
indicating their outermost points, we have