Let the domain of discourse be the set of all animals. Consider the predicates mammal(x): x is a mammal warm Blooded(x): x is warm-blooded hasHair(x): x has their skin covered with hair. laysEggs(x): x lays eggs. canFly(x): x can fly to move around. Select the expression that represents the sentence: There exist some special kinds of warm-blooded mammals with hair on their skin that can fly or lay eggs. Ovx (mammal(x) → (warmBlooded(x) ^ hasHair(x) ^ laysEggs(x) ^ canFly(x))) vx ³ (mammal(x) → (warmBlooded (x) ^ hasHair(x) ^ (laysEggs(y) canFly(y)))) 3x (mammal(x) → (warmBlooded(x) ^ hasHair(x) ^ (laysEggs(x) canFly(x)))) 3x (mammal(x) ^ warmBlooded(x) ^ hasHair(x) ^ (laysEggs(x) canFly(x)))

Let the domain of discourse be the set of all animals. Consider the predicates mammal(x): x is a mammal warm Blooded(x): x is warm-blooded hasHair(x): x has their skin covered with hair. laysEggs(x): x lays eggs. canFly(x): x can fly to move around. Select the expression that represents the sentence: There exist some special kinds of warm-blooded mammals with hair on their skin that can fly or lay eggs. Ovx (mammal(x) → (warmBlooded(x) ^ hasHair(x) ^ laysEggs(x) ^ canFly(x))) vx ³ (mammal(x) → (warmBlooded (x) ^ hasHair(x) ^ (laysEggs(y) canFly(y)))) 3x (mammal(x) → (warmBlooded(x) ^ hasHair(x) ^ (laysEggs(x) canFly(x)))) 3x (mammal(x) ^ warmBlooded(x) ^ hasHair(x) ^ (laysEggs(x) canFly(x)))

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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