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Definition df-ch0 21662
Description: Define the zero for closed subspaces of Hilbert space. See h0elch 21664 for closure law. (Contributed by NM, 30-May-1999.) (New usage is discouraged.)
Assertion
Ref Expression
df-ch0  |-  0H  =  { 0h }

Detailed syntax breakdown of Definition df-ch0
StepHypRef Expression
1 c0h 21345 . 2  class  0H
2 c0v 21334 . . 3  class  0h
32csn 3544 . 2  class  { 0h }
41, 3wceq 1619 1  wff  0H  =  { 0h }
Colors of variables: wff set class
This definition is referenced by:  elch0  21663  h0elch  21664  sh0le  21849  spansn0  21950  df0op2  22162  ho01i  22238  hh0oi  22313  nmop0h  22401
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