CODEWITHSUNDEEP
booleanoperators
rai
rai

Reputation: 13

Boolean operators exercise

I am in an exercise of Boolean operators and I do not understand why:

not not True or False and not True = True

I understand:

not not True = True
True or False = False
False and not True = False

not not True or False and not True = False

Upvotes: 0

Views: 57

Answers (2)

Buddhi
Buddhi

Reputation: 421

Precedence: 

NOT >  AND > OR

Therefore

not not True or False and not True = True

Just like:

2 + 3 * 3 - 1 = 10 and not 14.

Upvotes: 0

chepner
chepner

Reputation: 531165

Typically, and is given higher precedence than or, so your expression is equivalent to

(not not True) or (False and not True) == True or (False and False)
                                       == True or False
                                       == True

Upvotes: 2

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