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Axiom ax-bdn 17009
Description: The negation of a bounded formula is bounded. (Contributed by BJ, 25-Sep-2019.)
Hypothesis
Ref Expression
bdn.1 |- BOUNDED ph
Assertion
Ref Expression
ax-bdn |- BOUNDED -. ph
Detailed syntax breakdown of Axiom ax-bdn
StepHypRef Expression
1 wph . . 3 wff ph
21wn 3 . 2 wff -. ph
32wbd 17004 1 wff BOUNDED -. ph
Colors of variables:    wff set class
This axiom is used by:  bdstab  17019  bddc  17020  bdfal  17025  bdnthALT  17027  bdxor  17028  bdne  17045  bdnel  17046  bdcdif  17053  bj-nalset  17087  bj-nnelirr  17145
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