QUESTION : Fill in the blanks in the followingproof by induction of: No wff of PL begins withthestring (→'.This is a proof by induction overThe property P =.Proof:(i)(ii)Base case: No sentence letter of PLInductive step:a. Inductive hypothesis (IH): Suppose that o and y are wffs thatb. ~p: By the IH, _c. (9→y): (9→v) does not begin with the string '(→', because.But prefixing o with ' cannot change this.

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This is a proof by induction over, The property P =

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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