An open formula is a formula that contains at least one free variable. Some
educational resources use the term "
... is a "Sentence" ? Just like an English sentence, in mathematics a sentence
says something: ... Now ... what is a "Closed Sentence" or an "
Math definition for
a statement (as in mathematics) that contains at least one blank or unknown and that becomes true or false when the blank is filled or a quantity is substituted for ...
Example: 5 + n = 12. The
The lesson then introduces students to sentences that are neither true nor false
but are algebraic equations, also called
How to use
In this lesson, you will learn the definition of an