volume_mute

What does the following expression stand for?

publish date: 2022/06/12 12:35:00 GMT+10

volume_mute

A ↔ B

  1. (A → B) ∧ (B → A)
  2. (A ∧ B) ∨ (B ∧ A)
  3. (A ∨ B) ∧ (B ∨ A)
  4. (A ¬ B) ∨ (B ¬ A)
a
b
c
d

Correct Answer

a

Reference

Mathematical Structures for Computer Science, Discrete Mathematics and its Applications, seventh edition

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