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Theorem ogrpsublt 31347
Description: In an ordered group, strict ordering is compatible with group addition. (Contributed by Thierry Arnoux, 3-Sep-2018.)
Hypotheses
Ref Expression
ogrpsublt.0 𝐵 = (Base‘𝐺)
ogrpsublt.1 < = (lt‘𝐺)
ogrpsublt.2 = (-g𝐺)
Assertion
Ref Expression
ogrpsublt ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 𝑍) < (𝑌 𝑍))

Proof of Theorem ogrpsublt
StepHypRef Expression
1 simp3 1137 . . . . 5 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋 < 𝑌)
2 simp1 1135 . . . . . 6 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝐺 ∈ oGrp)
3 simp21 1205 . . . . . 6 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋𝐵)
4 simp22 1206 . . . . . 6 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑌𝐵)
5 eqid 2738 . . . . . . 7 (le‘𝐺) = (le‘𝐺)
6 ogrpsublt.1 . . . . . . 7 < = (lt‘𝐺)
75, 6pltval 18050 . . . . . 6 ((𝐺 ∈ oGrp ∧ 𝑋𝐵𝑌𝐵) → (𝑋 < 𝑌 ↔ (𝑋(le‘𝐺)𝑌𝑋𝑌)))
82, 3, 4, 7syl3anc 1370 . . . . 5 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 < 𝑌 ↔ (𝑋(le‘𝐺)𝑌𝑋𝑌)))
91, 8mpbid 231 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋(le‘𝐺)𝑌𝑋𝑌))
109simpld 495 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋(le‘𝐺)𝑌)
11 ogrpsublt.0 . . . 4 𝐵 = (Base‘𝐺)
12 ogrpsublt.2 . . . 4 = (-g𝐺)
1311, 5, 12ogrpsub 31342 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋(le‘𝐺)𝑌) → (𝑋 𝑍)(le‘𝐺)(𝑌 𝑍))
1410, 13syld3an3 1408 . 2 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 𝑍)(le‘𝐺)(𝑌 𝑍))
159simprd 496 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋𝑌)
16 ogrpgrp 31329 . . . . . 6 (𝐺 ∈ oGrp → 𝐺 ∈ Grp)
172, 16syl 17 . . . . 5 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝐺 ∈ Grp)
18 simp23 1207 . . . . 5 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑍𝐵)
1911, 12grpsubrcan 18656 . . . . 5 ((𝐺 ∈ Grp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵)) → ((𝑋 𝑍) = (𝑌 𝑍) ↔ 𝑋 = 𝑌))
2017, 3, 4, 18, 19syl13anc 1371 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → ((𝑋 𝑍) = (𝑌 𝑍) ↔ 𝑋 = 𝑌))
2120necon3bid 2988 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → ((𝑋 𝑍) ≠ (𝑌 𝑍) ↔ 𝑋𝑌))
2215, 21mpbird 256 . 2 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 𝑍) ≠ (𝑌 𝑍))
2311, 12grpsubcl 18655 . . . 4 ((𝐺 ∈ Grp ∧ 𝑋𝐵𝑍𝐵) → (𝑋 𝑍) ∈ 𝐵)
2417, 3, 18, 23syl3anc 1370 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 𝑍) ∈ 𝐵)
2511, 12grpsubcl 18655 . . . 4 ((𝐺 ∈ Grp ∧ 𝑌𝐵𝑍𝐵) → (𝑌 𝑍) ∈ 𝐵)
2617, 4, 18, 25syl3anc 1370 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑌 𝑍) ∈ 𝐵)
275, 6pltval 18050 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋 𝑍) ∈ 𝐵 ∧ (𝑌 𝑍) ∈ 𝐵) → ((𝑋 𝑍) < (𝑌 𝑍) ↔ ((𝑋 𝑍)(le‘𝐺)(𝑌 𝑍) ∧ (𝑋 𝑍) ≠ (𝑌 𝑍))))
282, 24, 26, 27syl3anc 1370 . 2 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → ((𝑋 𝑍) < (𝑌 𝑍) ↔ ((𝑋 𝑍)(le‘𝐺)(𝑌 𝑍) ∧ (𝑋 𝑍) ≠ (𝑌 𝑍))))
2914, 22, 28mpbir2and 710 1 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 𝑍) < (𝑌 𝑍))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 396  w3a 1086   = wceq 1539  wcel 2106  wne 2943   class class class wbr 5074  cfv 6433  (class class class)co 7275  Basecbs 16912  lecple 16969  ltcplt 18026  Grpcgrp 18577  -gcsg 18579  oGrpcogrp 31324
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-id 5489  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-fv 6441  df-riota 7232  df-ov 7278  df-oprab 7279  df-mpo 7280  df-1st 7831  df-2nd 7832  df-0g 17152  df-plt 18048  df-mgm 18326  df-sgrp 18375  df-mnd 18386  df-grp 18580  df-minusg 18581  df-sbg 18582  df-omnd 31325  df-ogrp 31326
This theorem is referenced by:  archiabllem1a  31445  archiabllem2a  31448  archiabllem2c  31449
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