LOGIC

.DAY

A pop celebration of formal reasoning

Think clearly.

AND
01

Operators

AND

P ∧ Q

Both must be true. The conjunction binds two propositions and returns truth only when neither falters.

P ∨ Q

At least one is true. Disjunction is generous -- a single spark is enough to light the room.

OR
¬ NOT

¬ P

Negation flips truth on its axis. Whatever was bright becomes dark, whatever was dark, bright.

P → Q

Implication is a promise. The premise pledges the conclusion -- broken only when truth begets falsehood.

IF → THEN
02

Truth Tables

A grid of fundamental truths -- bold blocks where logic resolves to a color.

P ∧ Q

P Q P ∧ Q
T T T
T F F
F T F
F F F

P ∨ Q

P Q P ∨ Q
T T T
T F T
F T T
F F F

P → Q

P Q P → Q
T T T
T F F
F T T
F F T

P ⊕ Q

P Q P ⊕ Q
T T F
T F T
F T T
F F F

TRUE FALSE Hover a row or a column header.

03

Syllogism

Three statements, one luminous conclusion.

Premise 1

All thinkers seek truth.

Premise 2

You are a thinker.

∴ Conclusion

You seek truth.

Q.E.D.