q. (A (BC)), ~B (FvG), (G·~H) (DB), (A~C) v H, (~H•~F) / ~D Construct proofs for the following more challenging problems, justifying each step that is not a premise. b. (BVC)A, A (S v T), B. ~S, (TA)(WS) /~W d. (AB) (CƆ D), (FA) (AB), A (FA), A·C / DvF i.(~ Pv~Q) (~R~S), (PT), (~WƆ(~T•~Z)), (~SZ) ·~(X •Y), (~Wv(XY)) / (~R•~W)
q. (A (BC)), ~B (FvG), (G·~H) (DB), (A~C) v H, (~H•~F) / ~D Construct proofs for the following more challenging problems, justifying each step that is not a premise. b. (BVC)A, A (S v T), B. ~S, (TA)(WS) /~W d. (AB) (CƆ D), (FA) (AB), A (FA), A·C / DvF i.(~ Pv~Q) (~R~S), (PT), (~WƆ(~T•~Z)), (~SZ) ·~(X •Y), (~Wv(XY)) / (~R•~W)
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
Related questions
Question
proofs
Transcribed Image Text:q. (A (BC)), ~B (FvG), (G·~H) (DB),
(A~C) v H, (~H•~F) / ~D
Construct proofs for the following more challenging problems, justifying each step
that is not a premise.
b. (BVC)A, A (S v T), B. ~S, (TA)(WS) /~W
d. (AB) (CƆ D), (FA) (AB), A (FA), A·C / DvF
i.(~ Pv~Q) (~R~S), (PT), (~WƆ(~T•~Z)), (~SZ) ·~(X •Y),
(~Wv(XY)) / (~R•~W)
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