equivalence
n.the state of being equal in value, amount, or meaning. You use this when two different things have the same effect or importance.
n.the state of being equal or interchangeable in value, function, or significance. Often used in technical contexts to describe a relationship where two entities satisfy the same requirements.
“There is no equivalence between the two different currencies.”
“The legal team argued for the equivalence of the two contracts despite their different wording.”
“In formal logic, a logical equivalence exists when two statements consistently share the same truth value across all possible scenarios, regardless of their internal structure.”
Uncountable when referring to the general state of being equal; countable when referring to specific instances or types of equal relationships.
From French équivalence, from Medieval Latin aequivalentia.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.