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Axiom ax-bdn 16843
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 16838 1 wff BOUNDED -. ph
Colors of variables:    wff set class
This axiom is used by:  bdstab  16853  bddc  16854  bdfal  16859  bdnthALT  16861  bdxor  16862  bdne  16879  bdnel  16880  bdcdif  16887  bj-nalset  16921  bj-nnelirr  16979
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