Logic / Unit 4 Logic 136 short lesson, about 20 seconds
Truth Table: The Biconditional
Captions available
The idea
p ≡ q: T on the matching rows (TT, FF), F on the mismatched ones.
In practice
The four-row card completes the set of five.
Where people slip
All five tables are now on record. The rest of this unit is computation on these definitions.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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