Boolean Algebra: Math Where 1+1=1
In normal math: 1 + 1 = 2
In Boolean algebra: 1 OR 1 = 1 (true OR true = true)
Boolean algebra is the mathematics of true/false, on/off, yes/no. Only two values exist: 0 and 1.
Every search engine query, database filter, and programming condition uses Boolean algebra. It's the math that powers decision-making in code.