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Theorem ch0pss 29786
Description: The zero subspace is a proper subset of nonzero Hilbert lattice elements. (Contributed by NM, 9-Jun-2004.) (New usage is discouraged.)
Assertion
Ref Expression
ch0pss (𝐴C → (0𝐴𝐴 ≠ 0))

Proof of Theorem ch0pss
StepHypRef Expression
1 df-pss 3910 . 2 (0𝐴 ↔ (0𝐴 ∧ 0𝐴))
2 necom 2998 . . 3 (0𝐴𝐴 ≠ 0)
3 ch0le 29782 . . . 4 (𝐴C → 0𝐴)
43biantrurd 532 . . 3 (𝐴C → (0𝐴 ↔ (0𝐴 ∧ 0𝐴)))
52, 4bitr3id 284 . 2 (𝐴C → (𝐴 ≠ 0 ↔ (0𝐴 ∧ 0𝐴)))
61, 5bitr4id 289 1 (𝐴C → (0𝐴𝐴 ≠ 0))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 395  wcel 2109  wne 2944  wss 3891  wpss 3892   C cch 29270  0c0h 29276
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1801  ax-4 1815  ax-5 1916  ax-6 1974  ax-7 2014  ax-8 2111  ax-9 2119  ax-ext 2710  ax-sep 5226  ax-hilex 29340
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1544  df-fal 1554  df-ex 1786  df-sb 2071  df-clab 2717  df-cleq 2731  df-clel 2817  df-ne 2945  df-rab 3074  df-v 3432  df-dif 3894  df-un 3896  df-in 3898  df-ss 3908  df-pss 3910  df-nul 4262  df-if 4465  df-pw 4540  df-sn 4567  df-pr 4569  df-op 4573  df-uni 4845  df-br 5079  df-opab 5141  df-xp 5594  df-cnv 5596  df-dm 5598  df-rn 5599  df-res 5600  df-ima 5601  df-iota 6388  df-fv 6438  df-ov 7271  df-sh 29548  df-ch 29562  df-ch0 29594
This theorem is referenced by:  elat2  30681
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