Valid argument with false premises

• [DOC File]12

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  2. Try to find an argument of the same form with true premises and a false conclusion. 3. If such an argument can be found, then the original argument is invalid. 4. If no such argument can be found, then either (1) the original argument is valid or (2) the tester is incompetent. inductive arguments —

  true premises false conclusion example

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• [DOC File]Argument: a set of reasons given in support of a …

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  Note: A valid argument with false premises could lead to a false conclusion. Proofs. are . valid arguments . that establish the truth of mathematical statements. Now the definitions here are a bit screwy in that we are saying that an argument doesn’t involve anything other than stating the premises and the conclusion without explanation. In ...

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• [DOCX File]Introductory problem: - Electrical Engineering and ...

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  A sound argument may have a false premise. Answer: F. The content of the argument deals with the structure of the argument. Answer: F. The conclusion of a valid argument can be false. Answer: T. Premises are reasons given in support of the conclusion. Answer: T. An argument can be said to be true or false. Answer: F. Logic is the study of ...

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• [DOC File]OCR Document

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  Notice that the actual truth of the premises makes no difference to determining whether the argument is valid or not. In the example above the premises were actually true, but in the following example (modified from Hurley, 2003: 42) both premises are false but the argument is valid: All car manufacturers are computer manufacturers.

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• [DOC File]Reprise on Validity

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  A valid argument can have false premises. Re-constructing an author’s argument into standard form. In the simplest case, we may need only to re-arrange the propositions of the argument in order to translate it into a standard-form categorical syllogism. Thus, for example,

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• [DOC File]NOTES ON DEDUCTIVE AND INDUCTIVE …

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  A valid argument may have a false conclusion. An unsound argument may have all true premises. Every valid argument with a true premise is sound. 6 marks. 3. Give an example of: An invalid argument with at least one true premise and a false conclusion. A valid argument with all false premises and a true conclusion. 2 marks. 4.

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• Argument - Wikipedia

  The valid deductive arguments can either have all true premises or not have all true premises (at least one premise is false). Any deductive argument that is both valid and has all true premises is called a . sound. argument and this is the best possible deductive argument because then the conclusion of a sound argument is guaranteed to be true.

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• [DOC File]Validity, Arguments and Soundness

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  The first argument is invalid, as both the premises are true and the conclusion is false, while the second is valid as there is no possible world in which the premises are true. iv. If the set consisting of the premises and the negation of the conclusion is consistent, then the argument is invalid.

  valid argument with false premise example

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• [DOC File]A Brief Introduction to Logic

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  In this case, since the conclusion is false and the argument is valid, at least one of the premises must be false. The culprit is quite clearly premise (1). Nevertheless, there is one arrangement of truth and falsity in the premises and conclusion that does determine the issue of validity: any deductive argument having actually true premises ...

  true premises false conclusion example

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