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Syntax Definition w2reu 30826
Description: Syntax for double restricted existential uniqueness quantification.
Hypotheses
Ref Expression
wph wff 𝜑
vx setvar 𝑥
vy setvar 𝑦
cA class 𝐴
cB class 𝐵
Assertion
Ref Expression
w2reu wff ∃!𝑥 ∈ 𝐴 , 𝑦 ∈ 𝐵𝜑
See definition df-2reu 30827 for more information.
Colors of variables: wff setvar class
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