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A fact is something that is real or true, or something that can be shown to be true or real.

Facts as statements[change | change source]

A fact is something which is true. What is it that is correct? It is the sense of a statement or proposition. In principle, statements are either true or false. However, in practice, their truth value may not be known, and waits for appropriate evidence. Fact includes i. Anything staeof things, or relation of things capable of being perceived by the senses; and ii. Any mental condition of which any person is conscious. e.g. a man heard or saw something is a fact, a man said certain words is fact, the man has a certain reputation is fact

Examples of fact statements[change | change source]

False statements[change | change source]

Opinions[change | change source]

A fact is not the same as an opinion. An opinion is perceived and assumed to be true, but lacks proof or evidence. The scientific method is a means by which an opinion may be tested. However, not all opinions are testable, so it may not be possible to know if they are true. An opinion that can not be tested is still an opinion until someone can find a way to test whether it is true or not.

Scientific theories[change | change source]

Scientific theories are of many kinds. Those which have stood up to many test and are supported by a great deal of evidence are scientific facts. Examples include the theory of relativity and the theory of evolution. They are still called "theories", but in practice they are facts. This is justified by the evidence which supports them, and by the way almost all scientists qualified in those subjects think they are correct.