Discrete math help

What do the symbols mean Heureka ?

Symbolic notation in Text notation:

(P⋁¬Q)⋀(¬P⋁Q)⋀(¬P⋁¬Q)  = ( P or (not Q)  ) and (  (not P) or Q ) and ( (not P) or ( not Q )  )

Symbolic notation in Text notation:

¬P⋀¬Q = ( not P ) and ( not Q )

⋁  = or

⋀  = and

¬   = not

¬P  = not P

¬Q  = not Q

P ⋁ Q = P or Q

P ⋀ Q = P and Q

see: https://en.wikipedia.org/wiki/Boolean_algebra

I need a truth table for this but i dont know how to do it..

(P⋁¬Q)⋀(¬P⋁Q)⋀(¬P⋁¬Q) 

(P⋁¬Q)⋀(¬P⋁Q)⋀(¬P⋁¬Q)  = ¬P⋀¬Q

What do the symbols mean Heureka ?

Thanks Heureka

I have studied Boolean logic but it was a long time ago and the symbols were different  :)

(That link doesn't work but it doesn't really matter )  ://