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Axiom ax-bdn 13392
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 13387 1 wff BOUNDED -. ph
Colors of variables: wff set class
This axiom is referenced by:  bdstab  13402  bddc  13403  bdfal  13408  bdnthALT  13410  bdxor  13411  bdne  13428  bdnel  13429  bdcdif  13436  bj-nalset  13470  bj-nnelirr  13528
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