The result of a subtraction; sometimes the absolute value of this result.
A disagreement or argument.
An addition to a coat of arms to distinguish two people's bearings which would otherwise be the same. See augmentation and cadency.
A characteristic of something that makes it different from something else.
The quality of being different.
The quality or attribute which is added to those of the genus to constitute a species; a differentia.
The set of elements that are in one set but not another ( scriptstyle A◌̅B).
Significant change in or effect on a situation or state.
A Boolean operation which is true when the two input variables are different but is otherwise false; the XOR operation ( scriptstyle A◌̅B+◌̅AB).
To be equivalent or equal to; to counterbalance.
The quantity of the combining power of an atom, expressed in hydrogen units; the number of hydrogen atoms can combine with, or be exchanged for; valency.
A number in intersection theory. A positive-dimensional variety sometimes behaves formally as if it were a finite number of points; this number is its equivalence.
An equivalence relation; ≡; ~
A Boolean operation that is TRUE when both input variables are TRUE or both input variables are FALSE, but otherwise FALSE; the XNOR function.
The condition of being equivalent or essentially equal.
The relationship between two propositions that are either both true or both false.
The degree to which a term or text in one language is semantically similar to its translated counterpart.