equipollent

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e·qui·pol·lent

(ē′kwə-pŏl′ənt, ĕk′wə-)
adj.
1. Equal in force, power, effectiveness, or significance.
2. Logic Validly deducible from each other.
3. Equivalent.
n.
An equivalent.

[Middle English, from Old French, from Latin aequipollēns, aequipollent- : aequi-, equi- + pollēns, present participle of pollēre, to be powerful.]

e′qui·pol′lence n.
e′qui·pol′lent·ly adv.

equipollent

(ˌiːkwɪˈpɒlənt)
adj
1. equal or equivalent in significance, power, or effect
2. (Logic) logic (of two propositions) logically deducible from each other; equivalent
3. (Mathematics) maths logic (of two classes) having the same cardinality
n
something that is equipollent
[C15: from Latin aequipollēns of equal importance, from equi- + pollēre to be able, be strong]
ˌequiˈpollence, ˌequiˈpollency n
ˌequiˈpollently adv

e•qui•pol•lent

(ˌi kwəˈpɒl ənt, ˌɛk wə-)

adj.
1. equal in power, effect, etc.; equivalent.
2. (of two propositions, propositional forms, etc.) logically equivalent.
n.
3. an equivalent.
[1375–1425; late Middle English < Late Latin aequipollent-, s. of aequipollēns of equal value]
e`qui•pol′lence, e′qui•pol′len•cy, n.
e`qui•pol′lent•ly, adv.