of or relating to or suggestive of complementation; "interchangeable electric outlets"
capable of replacing or changing places with something else; "interchangeable parts"
(mathematics, logic) such that the arguments or roles can be interchanged; "the arguments of the symmetric relation, `is a sister of,' are interchangeable"
(mathematics, logic) such that the arguments or roles can be interchanged; "the arguments of the symmetric relation, `is a sister of,'' are interchangeable"
capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability
(mathematics, logic) such that the arguments or roles can be interchanged