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Axiom ax-bdel 13856
Description: An atomic formula is bounded (membership predicate). (Contributed by BJ, 3-Oct-2019.)
Assertion
Ref Expression
ax-bdel BOUNDED 𝑥𝑦

Detailed syntax breakdown of Axiom ax-bdel
StepHypRef Expression
1 vx . . 3 setvar 𝑥
2 vy . . 3 setvar 𝑦
31, 2wel 2142 . 2 wff 𝑥𝑦
43wbd 13847 1 wff BOUNDED 𝑥𝑦
Colors of variables: wff set class
This axiom is referenced by:  bdcv  13883  bdop  13910  bdcuni  13911  bdcint  13912  bdcriota  13918  bj-nalset  13930  bj-inex  13942  bj-axun2  13950  bj-nnelirr  13988
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