Various IQ tests have shown the connection between recognising valid inferences (arguments) and the level of ones intelligence; our aim here is to observe what people consider as "valid inference"
A valid argument is said to be impossible for its premise(s) to be true and its conclusion false; a valid argument is free of counterexamples.
For example two valid inferences (arguments):
⁃ Messi is 6 feet tall therefore (=>) Messi is 6 feet tall
⁃ Messi is an Argentinian therefore (=>) Messi is an Argentinian
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