Logic / Unit 3 Logic 090 short lesson, about 20 seconds
Singular Statements
Captions available
The idea
Statements about individuals become categorical by treating the individual as a one-member class.
In practice
"Socrates is mortal" → "All members of the class {Socrates} are mortals." An A statement.
Where people slip
Artificial, yes — and it lets 2,000-year-old machinery process statements about individuals.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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