(Vx) (A → (B = C)) → ((Vx) (A → B) = (Vx) (A → C)) - a) Show that: b) Show that: (Vx) ((A v B) → C) → (Vx)(A → C) c) [Show that: (Vx)(A → (BAC)) → (Vx) (A → B) d) Prove (AV (Vx) BC = (Vx) B(A V C), as long as x not free in A. (Hint: Translate first to Standard notation)
(Vx) (A → (B = C)) → ((Vx) (A → B) = (Vx) (A → C)) - a) Show that: b) Show that: (Vx) ((A v B) → C) → (Vx)(A → C) c) [Show that: (Vx)(A → (BAC)) → (Vx) (A → B) d) Prove (AV (Vx) BC = (Vx) B(A V C), as long as x not free in A. (Hint: Translate first to Standard notation)
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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