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Argument from ignorance - Wikipedia, the free encyclopedia
The argument from ignorance , also known as argumentum ad ignorantiam ("appeal to ignorance" ), argument by lack of imagination , or negative evidence , is a logical fallacy in which it is cla...
en.wikipedia.org/wiki/Argument_from_ignorance |
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Informal Fallacy of Appeal to Ignorance. ... When the premises of an argument affirm that nothing has been proved about something, and the conclusion makes a definite assertion about that thing, the argument commits an appeal to ignorance.
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appeal to ignorance (argumentum ex silentio) appealing to ignorance as evidence for something. (e.g., We have no evidence that God doesn't exist, therefore, he must exist. Or: Because we have no knowledge of alien visitors, that means they do not exist).
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The basis of a an appeal to ignorance (also called argumentum ad ignoratium or argument from ignorance, see Walton) is that whatever has not been disproved must be correct. The problem with this type of argument can be seen in these two examples:
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Fallacies of Logical Structure: Appeal to Ignorance (Argumentum ad Ignorantiam) ... The fallacy of appeal to ignorance applies to the argument that a proposition is true because it hasn't been proven false. To put it differently, it is the argument that a proposition is true because the opposing proposition hasn't been...
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This fallacy can occur in two ways. 1) To argue that something is true because it hasn't been proven to be false; and 2) to argue that something is false because it hasn't been proven to be true. Just because there is no proof against a position does not make the statement true. ... Examples of appeals to Ignorance...
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Many individuals tend to appeal to ignorance when asked to mark the beginning of human life. The common response can be heard that no one knows when life begins. In addition, people of this opinion tend to view this issue as a religious and philosophic one which cannot be determined scientifically.
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