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Theorem cvrlt 39894
Description: The covers relation implies the less-than relation. (cvpss 32488 analog.) (Contributed by NM, 8-Oct-2011.)
Hypotheses
Ref Expression
cvrfval.b 𝐵 = (Base‘𝐾)
cvrfval.s < = (lt‘𝐾)
cvrfval.c 𝐶 = ( ⋖ ‘𝐾)
Assertion
Ref Expression
cvrlt (((𝐾𝐴𝑋𝐵𝑌𝐵) ∧ 𝑋𝐶𝑌) → 𝑋 < 𝑌)

Proof of Theorem cvrlt
Dummy variable 𝑧 is distinct from all other variables.
StepHypRef Expression
1 cvrfval.b . . 3 𝐵 = (Base‘𝐾)
2 cvrfval.s . . 3 < = (lt‘𝐾)
3 cvrfval.c . . 3 𝐶 = ( ⋖ ‘𝐾)
41, 2, 3cvrval 39893 . 2 ((𝐾𝐴𝑋𝐵𝑌𝐵) → (𝑋𝐶𝑌 ↔ (𝑋 < 𝑌 ∧ ¬ ∃𝑧𝐵 (𝑋 < 𝑧𝑧 < 𝑌))))
54simprbda 502 1 (((𝐾𝐴𝑋𝐵𝑌𝐵) ∧ 𝑋𝐶𝑌) → 𝑋 < 𝑌)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 399  w3a 1098   = wceq 1560  wcel 2142  wrex 3086   class class class wbr 5100  cfv 6521  Basecbs 17245  ltcplt 18340  ccvr 39886
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-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-covers 39890
This theorem is referenced by:  ncvr1  39896  cvrletrN  39897  cvrnbtwn2  39899  cvrnbtwn3  39900  cvrle  39902  cvrnle  39904  cvrne  39905  0ltat  39915  atlen0  39934  atcvreq0  39938  cvlcvr1  39963  cvrval3  40037  cvrval4N  40038  cvrexchlem  40043  ltcvrntr  40048  cvrntr  40049  cvrat2  40053  atltcvr  40059  1cvratex  40097  ps-2  40102  llnnleat  40137  lplnnle2at  40165  lvolnle3at  40206  lhp0lt  40627
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