⊽ (nor)
The negation of the logical disjunction (or) operator.
Syntax

p ⊽ q

p
andq
are booleans

Description
⊽
is the negation of the logical disjunction operator. The truth table for ⊽
is as follows:
qp

false  true 

false  true  false 
true  false  false 
⊽
is a binary operator implemented by the nor
function.
Notes
⊽
does NOT perform boolean shortcircuit evaluation.
See also

Logical operators (list)