mittevõrdub

Mittevõrdub is an Estonian term that translates to "non-equivalent" or "not equal." It is commonly used in mathematics and logic to denote that two quantities, expressions, or propositions are not the same. This is in contrast to "võrdub," which means "equals" or "is equivalent to."

In mathematical contexts, the symbol for non-equivalence is often a horizontal bar with a slash through it (≠). For instance, the statement 5 ≠ 3 indicates that the number 5 is not equal to the number 3. Similarly, in set theory, A ≠ B signifies that set A does not contain the exact same elements as set B. This concept applies to various mathematical operations and comparisons, such as inequalities where one value is strictly greater than or less than another.

In logic, mittevõrdub can refer to two propositions having different truth values or to two statements that do not logically entail each other. For example, if proposition P is true and proposition Q is false, then P mittevõrdub Q. The distinction is crucial for constructing valid arguments and understanding logical relationships. The term emphasizes a fundamental difference or dissimilarity between the entities being compared.