American Heritage® Dictionary of the English Language, Fourth Edition
- n. An example that refutes or disproves a hypothesis, proposition, or theorem.
- n. logic An exception to a proposed general rule; a specific instance of the falsity of a universally quantified statement.
- n. refutation by example
- counter- + example (Wiktionary)
“Implicit in the counterexample is that aggression must be not only defensive but also proportionate.”
“But that aside, how great a counterexample is this really?”
“Your counterexample is the pay scales of the US Army.”
“It is misleading to call the counterexample the "flatness problem," and then pretend it has a solution.”
“To use an unfair counterexample which is still illustrative: all adult Americans have 10,000 hours of practice speaking English, but few are orators.”
“This is the kind of counterexample to Iran we need to actively support," says Jackie Wolcott, a former U.S. envoy who helped negotiate the pact Mr. Bush signed in January.”
“I think The Stranger might be a kind of counterexample, since it really does seem to posit an alternative moral or rather amoral universe, one in which killing a man because the sun was in your eyes seems like no more unreasonable a thing to do than any other.”
“Another kind of counterexample to SCA, also due to Johnston”
“For the fourth "counterexample," the author points out that the momentum”
“Tumulka believes that a GRW-like theory may be fully Lorentz-invariant which is clearly wrong: his GRW-like "counterexample" to the Kochen-Conway theorem has no interactions which is”
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Words for students of introductory logic
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