Valid Argument * O an argument is said to be valid if and only if it is not possible to make all premises true and conclusion true O an argument is said to be valid if and only if it is possible to make all premises true and conclusion false O an argument is said to be valid if and only if it is not possible to make all premises true and conclusion false Universal Instantiation * O This rule is used to conclude that P(c) is true when vx P(x) is true. O This rule is used to conclude that P(x) is true when vx P(x) is true. O This rule is used to conclude that P(c) is true when 3x P(x) is true.
Valid Argument * O an argument is said to be valid if and only if it is not possible to make all premises true and conclusion true O an argument is said to be valid if and only if it is possible to make all premises true and conclusion false O an argument is said to be valid if and only if it is not possible to make all premises true and conclusion false Universal Instantiation * O This rule is used to conclude that P(c) is true when vx P(x) is true. O This rule is used to conclude that P(x) is true when vx P(x) is true. O This rule is used to conclude that P(c) is true when 3x P(x) is true.
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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Transcribed Image Text:Valid Argument *
O
an argument is said to be valid if and only if it is not possible to make all premises
true and conclusion true
O
an argument is said to be valid if and only if it is possible to make all premises true
and conclusion false
O
an argument is said to be valid if and only if it is not possible to make all premises
true and conclusion false
Universal Instantiation *
O This rule is used to conclude that P(c) is true when vx P(x) is true.
This rule is used to conclude that P(x) is true when vx P(x) is true.
O This rule is used to conclude that P(c) is true when 3x P(x) is true.
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