Logic / Unit 4 Logic 134 short lesson, about 20 seconds
Truth Table: The Conditional
Captions available
The idea
p ⊃ q: F only on the row where p is T and q is F. True everywhere else — including both rows where p is false.
In practice
The four-row card. Stare at rows three and four.
Where people slip
Yes, those rows look wrong. No, they aren't.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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