Meaning & Definition of word "Theorem"

Theorem

/ˈθiːərəm/

noun:

  • 1. A proposition that has been or is to be proved on the basis of explicit assumptions and previously established statements, such as other theorems.
    • Example: According to the Pythagorean theorem, in a right-angled 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.
  • 2. A general principle or law that has been established by reasoning or mathematical proof.
    • Example: Cantor's theorem demonstrates that there are different sizes of infinity.
  • 3. An idea or principle believed to be true but not yet proven.
    • Example: The scientist proposed a new theorem regarding the behavior of subatomic particles.
  • 4. In mathematics, a formal statement, often formulated as a mathematical equation, that can be derived from an axiomatic system.
    • Example: The fundamental theorem of calculus links the concept of differentiation and integration.

Etymology

From Greek 'theorein' meaning 'to view, to contemplate'.

Common Phrases and Expressions

fundamental theorem:

A theorem that is central to a particular field of study.

theorem of calculus:

A key theorem in calculus that ties together the concepts of differentiation and integration.

Related Words

proof:

A logical argument demonstrating the truth of a theorem.

axiom:

A statement or proposition that is regarded as being self-evidently true.

lemma:

A subsidiary or intermediate theorem in an argument or proof.

Slang Meanings of theorem

Meaning: A clever or smart solution to a problem.

Example Sentence: That idea is a real theorem for getting out of this mess!

Meaning: A joke or humorous take on a complex idea.

Example Sentence: I came up with a hilarious theorem about why cats always land on their feet.