What is the difference between a *theorem* and a *theory*? The two words seem to be used to describe very similar things, but yet do not seem to be interchangeable.

For example, we have Pythagoras' *theorem* and Einstein's *theory* of relativity.

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# Learn English – Difference between “theorem” and “theory”

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differencesnouns

What is the difference between a *theorem* and a *theory*? The two words seem to be used to describe very similar things, but yet do not seem to be interchangeable.

For example, we have Pythagoras' *theorem* and Einstein's *theory* of relativity.

## Best Answer

A

theoremis a result that can be proven to be true from a set of axioms. The term is used especially in mathematics where the axioms are those of mathematical logic and the systems in question.A

theoryis a set of ideas used to explain why something is true, or a set of rules on which a subject is based on.