Given the following: If the unicorn is mythical, then it is immortal, but if it is not mythical, then it is a mortal mammal. If the unicorn is either immortal or a mammal, then it is horned. The unicorn is magical if it is horned. Representing the above as a knowledge base of sentences in propositional logic using the proposition given below results in s1 through s4: Y: the unicorn is mythical I: the unicorn is immortal A: the unicorn is a mammal H: the unicorn is horned G: the unicorn is magical s1: If the unicorn is mythical, then it is immortal : Y =I s2: If it is not mythical, then it is a mortal mammal : ¬Y=A ^ ¬I s3: If the unicorn is either immortal or a mammal, then it is horned : I V A=H s4: The unicorn is magical if it is horned : H= G 1. 1 and show that the sentence G, the unicorn is magical, follows from the knowledge base (circle the models that satisfy the KB and G in the truth table). ) Use a truth table to show all interpretations/models that satisfy the knowledge base

Given the following: If the unicorn is mythical, then it is immortal, but if it is not mythical, then it is a mortal mammal. If the unicorn is either immortal or a mammal, then it is horned. The unicorn is magical if it is horned. Representing the above as a knowledge base of sentences in propositional logic using the proposition given below results in s1 through s4: Y: the unicorn is mythical I: the unicorn is immortal A: the unicorn is a mammal H: the unicorn is horned G: the unicorn is magical s1: If the unicorn is mythical, then it is immortal : Y =I s2: If it is not mythical, then it is a mortal mammal : ¬Y=A ^ ¬I s3: If the unicorn is either immortal or a mammal, then it is horned : I V A=H s4: The unicorn is magical if it is horned : H= G 1. 1 and show that the sentence G, the unicorn is magical, follows from the knowledge base (circle the models that satisfy the KB and G in the truth table). ) Use a truth table to show all interpretations/models that satisfy the knowledge base

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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Concept explainers

Inference in AI

The inference is finding a conclusion or result based on any data, events, and any information. Usually, there will be a set of conditions and the conclusion is made, which satisfies all the given conditions are true. The conclusion is made according to the inference rules. Any artificial intelligence agent or an intelligent system uses the inference engine to find a better result or output. The work of the inference engine is to analyze the fact and figures based on all circumstances. After the analysis, the machine concludes this fact and gives it to the agent. The agent uses this conclusion for further processing and decision-making. Intelligent systems will generate new logic from existing ones based on the facts.

Question

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Given the following:
If the unicorn is mythical, then it is immortal, but if it is not mythical, then it is a
mortal mammal. If the unicorn is either immortal or a mammal, then it is horned. The
unicorn is magical if it is horned.
Representing the above as a knowledge base of sentences in propositional logic using
the proposition given below results in s1 through s4:
the unicorn is mythical
the unicorn is immortal
Y:
I:
A:
the unicorn is a mammal
H:
the unicorn is horned
G:
the unicorn is magical
s1: If the unicorn is mythical, then it is immortal : Y =I
s2: If it is not mythical, then it is a mortal mammal : ¬Y=A A -I
s3: If the unicorn is either immortal or a mammal, then it is horned : I V A =H
s4: The unicorn is magical if it is horned : H= G
1.
and show that the sentence G, the unicorn is magical, follows from the knowledge base (circle
the models that satisfy the KB and G in the truth table).
) Use a truth table to show all interpretations/models that satisfy the knowledge base
2. (е
that the unicorn has a horn
Use logical inference to prove by contradiction (refutation/reductio ad absurdum),

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