What it means
∧ is logical and, true when both sides are; ∨ is or, true when at least one is; ¬ is not, which flips true and false.
Read aloud in real formulas
¬(P ∧ Q) ⇔ ¬P ∨ ¬Q
Aethel says
not, P and Q, if and only if not P or not Q
one of De Morgan's laws
Typing it
- LaTeX
- \land, \lor, \lnot
- Unicode
- U+2227, U+2228, U+00AC
Questions
How do you say ∧ out loud?
It is usually read “and”, and also “or” or “not”.
What does ∧ mean in maths?
∧ is logical and, true when both sides are; ∨ is or, true when at least one is; ¬ is not, which flips true and false.
How do you type ∧?
In LaTeX, write \land, \lor, \lnot. Its Unicode code point is U+2227, U+2228, U+00AC.