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67. Given the premises = {A, B, A → B, B → A), which of the following formulas can be deduced using the deduction theorem? a. ABX O b. A v B OC. A B Od. A AB 61. Given the premises [ = {A, B}, which of the following formulas can be deduced using the deduction theorem? a. A B b. О с. A^ BX А у В Od. A B

67. Given the premises = {A, B, A → B, B → A), which of the following formulas can be deduced using the deduction theorem? a. ABX O b. A v B OC. A B Od. A AB 61. Given the premises [ = {A, B}, which of the following formulas can be deduced using the deduction theorem? a. A B b. О с. A^ BX А у В Od. A B

Database System Concepts
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
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67. Given the premises [ = {A, B, A → B, B → A}, which of the following formulas can be deduced using the deduction theorem? A → BX a. O b. Av B O c. A = B O d. A^ B 61. Given the premises [ = {A, B}, which of the following formulas can be deduced using the deduction theorem? a. A = B O b. A^ BX O C. AV B Od. A B
Transcribed Image Text:67. Given the premises [ = {A, B, A → B, B → A}, which of the following formulas can be deduced using the deduction theorem? A → BX a. O b. Av B O c. A = B O d. A^ B 61. Given the premises [ = {A, B}, which of the following formulas can be deduced using the deduction theorem? a. A = B O b. A^ BX O C. AV B Od. A B
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