Proof of De Morgan's Law for the Union of Two Sets

Proof of De Morgan's Law for the Union of Two Sets

[darcash]

Union --> OR between sets
Intersect --> AND between sets
Complement --> NOT for a set

So, converting our statement, we get:
~(A ^ B),

By Demorgan,

~A and ~B

And converting back we get
Complement(A) Intersection Complement(B)

[iagocasalderreycasalderrey]

Amazing. Best example ever. It's noticiable you like maths

[hjjkjb]

Why do you sometimes use the biconditional arrow <=> and sometimes just use = ?.... How to know when to use which?