What context can I use each word in?
Learn when and how to use these words with these examples!
theorem
Example
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. [theorem: noun]
Example
To prove the theorem, we used a series of logical steps to demonstrate its truth. [theorem: noun]
rule
Example
The school has a rule that students must wear uniforms. [rule: noun]
Example
The government has implemented new rules to regulate the use of social media. [rule: noun]
Example
In this game, the rules state that players must take turns and follow a specific order of play. [rules: noun]
Good things to know
Which word is more common?
Rule is more commonly used than theorem in everyday language, as it is more versatile and applicable to a wider range of contexts.
What’s the difference in the tone of formality between theorem and rule?
Theorem is typically associated with a more formal and academic tone, while rule can be used in both formal and informal contexts.
