An alternative form of equipollence; the state of having equal power or logical equivalence.
Variant formation of equipollence using the -cy suffix instead of -ce, both derived from Latin equipollentia. Both forms are acceptable in formal discourse, though equipollence is more common.
Equipollency and equipollence are like twins—they mean the same thing but one sounds a bit more scholarly, kind of like how 'pharmacy' and 'pharmacist' both relate to medicine but describe different things!
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