Complete the following exercises about logical sentences:1. Translate into *good, natural* English (no xs or ys!):∀x,y,lSpeaksLanguage(x,l)∧SpeaksLanguage(y,l)⟹Understands(x,y)∧Understands(y,x).Explain why this sentence is entailed by the sentence∀x,y,lSpeaksLanguage(x,l)∧SpeaksLanguage(y,l)⟹Understands(x,y).Translate into first-order logic the following sentences:1. Understanding leads to friendship.2. Friendship is transitive.Remember to define all predicates, functions, and constants you use

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Answered: 1. Translate into *good, natural*…

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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Complete the following exercises about logical sentences:
1. Translate into *good, natural* English (no xs or ys!):

∀x,y,lSpeaksLanguage(x,l)∧SpeaksLanguage(y,l)⟹Understands(x,y)∧Understands(y,x).

Explain why this sentence is entailed by the sentence

∀x,y,lSpeaksLanguage(x,l)∧SpeaksLanguage(y,l)⟹Understands(x,y).

Translate into first-order logic the following sentences:
1. Understanding leads to friendship.
2. Friendship is transitive.
Remember to define all predicates, functions, and constants you use

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