Which rule is used in the argument below? • Alice is a student in the class. • Alice got an A on the test and did not study. •Therefore, there is a student in the class who got an A on the test and did not study. Select one: O Universal generalization O Existential generalization O Existential instantiation O Universal instantiation

Which rule is used in the argument below? • Alice is a student in the class. • Alice got an A on the test and did not study. •Therefore, there is a student in the class who got an A on the test and did not study. Select one: O Universal generalization O Existential generalization O Existential instantiation O Universal instantiation

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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Concept explainers

Logic and Proofs

Discrete mathematics deals with the separated values of data such as integers. It is widely used in the practical field of computer science and mathematics. By knowing discrete mathematics one can improve their reasoning and problem-solving capabilities. Discrete mathematics became popular after the boom of computers which operate in discrete steps and store data in discrete bits. It also useful in studying computer programming, algorithms, and cryptography.

Question

Which rule is used in the argument below?
• Alice is a student in the class.
• Alice got an A on the test and did not study.
•Therefore, there is a student in the class who got an A on the test and did not study.
Select one:
O Universal generalization
O Existential generalization
O Existential instantiation
O Universal instantiation
Select the value for x that is a counter-example to the following statement:
For every integer L, E <'x²,
Select one:
O=1
Or=-1
O z = -1/2

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