1:assumption2: Aassumption3: Bassumption4:assumption5:A-Bassumption6:Chyp 47:(A-B)→Cintro 5-68:elim 1,79: C-D→ intro 4-810: B-(C-D)intro 3-911:intro 2-1012:intro 1-11Select one or more:line 8: A Bline 11: ((A B) → C) → Dline 1: (A B) C) Dline 1: A (B (C D))->line 8: Dline 11: A (B (C D))->↑↑

Here, I have to choose an option for the above quetsion.

1: assumption 2: A assumption 3: B assumption 4: assumption 5: A-B assumption . 6: C hyp 4 7: (А- B) -С intro 5-6 8: elim 1,7 9: C-D intro 4-8 10: B-(C-D) intro 3-9 1: intro 2-10 12: intro 1-11 elect one or more: line 8: A - B line 11: (A B) → C) → D line 1: ((A B) C) D line 1: A (B- (C D)) line 8: D line 11: A - (B→ (C → D))

1: assumption 2: A assumption 3: B assumption 4: assumption 5: A-B assumption . 6: C hyp 4 7: (А- B) -С intro 5-6 8: elim 1,7 9: C-D intro 4-8 10: B-(C-D) intro 3-9 1: intro 2-10 12: intro 1-11 elect one or more: line 8: A - B line 11: (A B) → C) → D line 1: ((A B) C) D line 1: A (B- (C D)) line 8: D line 11: A - (B→ (C → D))

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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