What is the definition of postulate?

A.
an assumption, presumed to be true, that is used as the basis for a logical argument
B.
a statement that has been shown to be true by logical argument
C.
a statement that has been shown to be false by logical argument
D.
a statement, known to be false, that is used as the basis for a logical argument

A. an assumption, presumed to be true, that is used as the basis for a logical argument

The correct definition of postulate is A. An assumption, presumed to be true, that is used as the basis for a logical argument.

The definition of postulate is option A, "an assumption, presumed to be true, that is used as the basis for a logical argument."

To find the definition of a word, you can use various resources such as dictionaries, either online or in print. Online dictionaries like Merriam-Webster or Oxford Dictionaries are quick and easily accessible.

Once you access a dictionary website, you can search for the word "postulate" in the search bar provided. The search results will display the definition along with additional information about the word, such as its origin, usage, and examples. In this case, you will find that a postulate is an assumption that is believed to be true and serves as the foundation for a logical argument.