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Theorem lcvbr3 39647
Description: The covers relation for a left vector space (or a left module). (Contributed by NM, 9-Jan-2015.)
Hypotheses
Ref Expression
lcvfbr.s 𝑆 = (LSubSp‘𝑊)
lcvfbr.c 𝐶 = ( ⋖L𝑊)
lcvfbr.w (𝜑𝑊𝑋)
lcvfbr.t (𝜑𝑇𝑆)
lcvfbr.u (𝜑𝑈𝑆)
Assertion
Ref Expression
lcvbr3 (𝜑 → (𝑇𝐶𝑈 ↔ (𝑇𝑈 ∧ ∀𝑠𝑆 ((𝑇𝑠𝑠𝑈) → (𝑠 = 𝑇𝑠 = 𝑈)))))
Distinct variable groups:   𝑆,𝑠   𝑊,𝑠   𝑇,𝑠   𝑈,𝑠
Allowed substitution hints:   𝜑(𝑠)   𝐶(𝑠)   𝑋(𝑠)

Proof of Theorem lcvbr3
StepHypRef Expression
1 lcvfbr.s . . 3 𝑆 = (LSubSp‘𝑊)
2 lcvfbr.c . . 3 𝐶 = ( ⋖L𝑊)
3 lcvfbr.w . . 3 (𝜑𝑊𝑋)
4 lcvfbr.t . . 3 (𝜑𝑇𝑆)
5 lcvfbr.u . . 3 (𝜑𝑈𝑆)
61, 2, 3, 4, 5lcvbr 39645 . 2 (𝜑 → (𝑇𝐶𝑈 ↔ (𝑇𝑈 ∧ ¬ ∃𝑠𝑆 (𝑇𝑠𝑠𝑈))))
7 iman 405 . . . . . 6 (((𝑇𝑠𝑠𝑈) → (𝑠 = 𝑇𝑠 = 𝑈)) ↔ ¬ ((𝑇𝑠𝑠𝑈) ∧ ¬ (𝑠 = 𝑇𝑠 = 𝑈)))
8 df-pss 3924 . . . . . . . . 9 (𝑇𝑠 ↔ (𝑇𝑠𝑇𝑠))
9 necom 3010 . . . . . . . . . 10 (𝑇𝑠𝑠𝑇)
109anbi2i 632 . . . . . . . . 9 ((𝑇𝑠𝑇𝑠) ↔ (𝑇𝑠𝑠𝑇))
118, 10bitri 277 . . . . . . . 8 (𝑇𝑠 ↔ (𝑇𝑠𝑠𝑇))
12 df-pss 3924 . . . . . . . 8 (𝑠𝑈 ↔ (𝑠𝑈𝑠𝑈))
1311, 12anbi12i 637 . . . . . . 7 ((𝑇𝑠𝑠𝑈) ↔ ((𝑇𝑠𝑠𝑇) ∧ (𝑠𝑈𝑠𝑈)))
14 an4 666 . . . . . . . 8 (((𝑇𝑠𝑠𝑇) ∧ (𝑠𝑈𝑠𝑈)) ↔ ((𝑇𝑠𝑠𝑈) ∧ (𝑠𝑇𝑠𝑈)))
15 neanior 3050 . . . . . . . . 9 ((𝑠𝑇𝑠𝑈) ↔ ¬ (𝑠 = 𝑇𝑠 = 𝑈))
1615anbi2i 632 . . . . . . . 8 (((𝑇𝑠𝑠𝑈) ∧ (𝑠𝑇𝑠𝑈)) ↔ ((𝑇𝑠𝑠𝑈) ∧ ¬ (𝑠 = 𝑇𝑠 = 𝑈)))
1714, 16bitri 277 . . . . . . 7 (((𝑇𝑠𝑠𝑇) ∧ (𝑠𝑈𝑠𝑈)) ↔ ((𝑇𝑠𝑠𝑈) ∧ ¬ (𝑠 = 𝑇𝑠 = 𝑈)))
1813, 17bitri 277 . . . . . 6 ((𝑇𝑠𝑠𝑈) ↔ ((𝑇𝑠𝑠𝑈) ∧ ¬ (𝑠 = 𝑇𝑠 = 𝑈)))
197, 18xchbinxr 337 . . . . 5 (((𝑇𝑠𝑠𝑈) → (𝑠 = 𝑇𝑠 = 𝑈)) ↔ ¬ (𝑇𝑠𝑠𝑈))
2019ralbii 3108 . . . 4 (∀𝑠𝑆 ((𝑇𝑠𝑠𝑈) → (𝑠 = 𝑇𝑠 = 𝑈)) ↔ ∀𝑠𝑆 ¬ (𝑇𝑠𝑠𝑈))
21 ralnex 3088 . . . 4 (∀𝑠𝑆 ¬ (𝑇𝑠𝑠𝑈) ↔ ¬ ∃𝑠𝑆 (𝑇𝑠𝑠𝑈))
2220, 21bitri 277 . . 3 (∀𝑠𝑆 ((𝑇𝑠𝑠𝑈) → (𝑠 = 𝑇𝑠 = 𝑈)) ↔ ¬ ∃𝑠𝑆 (𝑇𝑠𝑠𝑈))
2322anbi2i 632 . 2 ((𝑇𝑈 ∧ ∀𝑠𝑆 ((𝑇𝑠𝑠𝑈) → (𝑠 = 𝑇𝑠 = 𝑈))) ↔ (𝑇𝑈 ∧ ¬ ∃𝑠𝑆 (𝑇𝑠𝑠𝑈)))
246, 23bitr4di 291 1 (𝜑 → (𝑇𝐶𝑈 ↔ (𝑇𝑈 ∧ ∀𝑠𝑆 ((𝑇𝑠𝑠𝑈) → (𝑠 = 𝑇𝑠 = 𝑈)))))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 208  wa 399  wo 858   = wceq 1560  wcel 2142  wne 2957  wral 3076  wrex 3086  wss 3904  wpss 3905   class class class wbr 5100  cfv 6521  LSubSpclss 20998  L clcv 39642
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1815  ax-4 1829  ax-5 1930  ax-6 1987  ax-7 2028  ax-8 2144  ax-9 2152  ax-10 2175  ax-11 2191  ax-12 2212  ax-ext 2734  ax-sep 5246  ax-nul 5256  ax-pow 5322  ax-pr 5390  ax-un 7718
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1100  df-tru 1563  df-fal 1573  df-ex 1800  df-nf 1804  df-sb 2091  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3077  df-rex 3087  df-rab 3415  df-v 3456  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-pss 3924  df-nul 4286  df-if 4481  df-pw 4557  df-sn 4583  df-pr 4585  df-op 4589  df-uni 4866  df-br 5101  df-opab 5163  df-mpt 5182  df-id 5542  df-xp 5653  df-rel 5654  df-cnv 5655  df-co 5656  df-dm 5657  df-iota 6477  df-fun 6523  df-fv 6529  df-lcv 39643
This theorem is referenced by:  lcvexchlem4  39661  lcvexchlem5  39662
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