Complete this formal proof of Ex(P(x)v-P(x) from the empty set. NOTE: similar to the rule above when instantiating quantifiers, if you need a random name, always start at the beginning of the alphabet. That is, use a first; only use bif necessary; etc. Hint: notice line 8 is not in any subproof. So if you try a reductio, it needs to be a reductio of whatever goes on line 8! 1.1 2. || 3.|| 4.1 5.1 6.

Complete this formal proof of Ex(P(x)v-P(x) from the empty set. NOTE: similar to the rule above when instantiating quantifiers, if you need a random name, always start at the beginning of the alphabet. That is, use a first; only use bif necessary; etc. Hint: notice line 8 is not in any subproof. So if you try a reductio, it needs to be a reductio of whatever goes on line 8! 1.1 2. || 3.|| 4.1 5.1 6.

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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