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Theorem ch0pss 29856
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 3911 . 2 (0𝐴 ↔ (0𝐴 ∧ 0𝐴))
2 necom 2995 . . 3 (0𝐴𝐴 ≠ 0)
3 ch0le 29852 . . . 4 (𝐴C → 0𝐴)
43biantrurd 534 . . 3 (𝐴C → (0𝐴 ↔ (0𝐴 ∧ 0𝐴)))
52, 4bitr3id 285 . 2 (𝐴C → (𝐴 ≠ 0 ↔ (0𝐴 ∧ 0𝐴)))
61, 5bitr4id 290 1 (𝐴C → (0𝐴𝐴 ≠ 0))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 397  wcel 2104  wne 2941  wss 3892  wpss 3893   C cch 29340  0c0h 29346
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1911  ax-6 1969  ax-7 2009  ax-8 2106  ax-9 2114  ax-ext 2707  ax-sep 5232  ax-hilex 29410
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 846  df-3an 1089  df-tru 1542  df-fal 1552  df-ex 1780  df-sb 2066  df-clab 2714  df-cleq 2728  df-clel 2814  df-ne 2942  df-rab 3306  df-v 3439  df-dif 3895  df-un 3897  df-in 3899  df-ss 3909  df-pss 3911  df-nul 4263  df-if 4466  df-pw 4541  df-sn 4566  df-pr 4568  df-op 4572  df-uni 4845  df-br 5082  df-opab 5144  df-xp 5606  df-cnv 5608  df-dm 5610  df-rn 5611  df-res 5612  df-ima 5613  df-iota 6410  df-fv 6466  df-ov 7310  df-sh 29618  df-ch 29632  df-ch0 29664
This theorem is referenced by:  elat2  30751
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