Using a first-order language with variables ranging over people, and predi- cates trusts(x, y), politician(x), crazy(x), know(x, y), and related(x, y), and rich(x), write down first-order sentences asserting the following: (a) Nobody trusts a politician. (b) Anyone who trusts a politician is crazy. (c) Everyone knows someone who is related to a politician. (d) Everyone who is rich is either a politician or knows a politician.
Using a first-order language with variables ranging over people, and predi- cates trusts(x, y), politician(x), crazy(x), know(x, y), and related(x, y), and rich(x), write down first-order sentences asserting the following: (a) Nobody trusts a politician. (b) Anyone who trusts a politician is crazy. (c) Everyone knows someone who is related to a politician. (d) Everyone who is rich is either a politician or knows a politician.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![1. Using a first-order language with variables ranging over people, and predi-
cates trusts(x, y), politician(x), crazy(x), know(x, y), and related(x, y), and
rich(x), write down first-order sentences asserting the following:
(a) Nobody trusts a politician.
(b) Anyone who trusts a politician is crazy.
(c) Everyone knows someone who is related to a politician.
(d) Everyone who is rich is either a politician or knows a politician.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbbde4353-b0b7-4bd2-a434-8b0c3eb968b8%2F732ade14-b4cb-4c56-8b57-ce87bff82db6%2Fm4muozu_processed.png&w=3840&q=75)
Transcribed Image Text:1. Using a first-order language with variables ranging over people, and predi-
cates trusts(x, y), politician(x), crazy(x), know(x, y), and related(x, y), and
rich(x), write down first-order sentences asserting the following:
(a) Nobody trusts a politician.
(b) Anyone who trusts a politician is crazy.
(c) Everyone knows someone who is related to a politician.
(d) Everyone who is rich is either a politician or knows a politician.
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