## Discussion Forum

Que. | Let a, b, c, d be propositions. Assume that the equivalences a ↔ (b V-b) and b ↔ c hold. Then the truth value of the formula (a ∧ b) → (a ∧ c) ∨ d) is always |

a. | True |

b. | False |

c. | Same as the truth value of b |

d. | Same as the truth value of d |

Answer:True |