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Theorem ogrpaddlt 31245
Description: In an ordered group, strict ordering is compatible with group addition. (Contributed by Thierry Arnoux, 20-Jan-2018.)
Hypotheses
Ref Expression
ogrpaddlt.0 𝐵 = (Base‘𝐺)
ogrpaddlt.1 < = (lt‘𝐺)
ogrpaddlt.2 + = (+g𝐺)
Assertion
Ref Expression
ogrpaddlt ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 + 𝑍) < (𝑌 + 𝑍))

Proof of Theorem ogrpaddlt
StepHypRef Expression
1 isogrp 31230 . . . . 5 (𝐺 ∈ oGrp ↔ (𝐺 ∈ Grp ∧ 𝐺 ∈ oMnd))
21simprbi 496 . . . 4 (𝐺 ∈ oGrp → 𝐺 ∈ oMnd)
323ad2ant1 1131 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝐺 ∈ oMnd)
4 simp2 1135 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋𝐵𝑌𝐵𝑍𝐵))
5 simp1 1134 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝐺 ∈ oGrp)
6 simp21 1204 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋𝐵)
7 simp22 1205 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑌𝐵)
8 simp3 1136 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋 < 𝑌)
9 eqid 2738 . . . . . 6 (le‘𝐺) = (le‘𝐺)
10 ogrpaddlt.1 . . . . . 6 < = (lt‘𝐺)
119, 10pltle 17966 . . . . 5 ((𝐺 ∈ oGrp ∧ 𝑋𝐵𝑌𝐵) → (𝑋 < 𝑌𝑋(le‘𝐺)𝑌))
1211imp 406 . . . 4 (((𝐺 ∈ oGrp ∧ 𝑋𝐵𝑌𝐵) ∧ 𝑋 < 𝑌) → 𝑋(le‘𝐺)𝑌)
135, 6, 7, 8, 12syl31anc 1371 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋(le‘𝐺)𝑌)
14 ogrpaddlt.0 . . . 4 𝐵 = (Base‘𝐺)
15 ogrpaddlt.2 . . . 4 + = (+g𝐺)
1614, 9, 15omndadd 31234 . . 3 ((𝐺 ∈ oMnd ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋(le‘𝐺)𝑌) → (𝑋 + 𝑍)(le‘𝐺)(𝑌 + 𝑍))
173, 4, 13, 16syl3anc 1369 . 2 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 + 𝑍)(le‘𝐺)(𝑌 + 𝑍))
1810pltne 17967 . . . . 5 ((𝐺 ∈ oGrp ∧ 𝑋𝐵𝑌𝐵) → (𝑋 < 𝑌𝑋𝑌))
1918imp 406 . . . 4 (((𝐺 ∈ oGrp ∧ 𝑋𝐵𝑌𝐵) ∧ 𝑋 < 𝑌) → 𝑋𝑌)
205, 6, 7, 8, 19syl31anc 1371 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → 𝑋𝑌)
21 ogrpgrp 31231 . . . . . 6 (𝐺 ∈ oGrp → 𝐺 ∈ Grp)
2214, 15grprcan 18528 . . . . . . 7 ((𝐺 ∈ Grp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵)) → ((𝑋 + 𝑍) = (𝑌 + 𝑍) ↔ 𝑋 = 𝑌))
2322biimpd 228 . . . . . 6 ((𝐺 ∈ Grp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵)) → ((𝑋 + 𝑍) = (𝑌 + 𝑍) → 𝑋 = 𝑌))
2421, 23sylan 579 . . . . 5 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵)) → ((𝑋 + 𝑍) = (𝑌 + 𝑍) → 𝑋 = 𝑌))
2524necon3d 2963 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵)) → (𝑋𝑌 → (𝑋 + 𝑍) ≠ (𝑌 + 𝑍)))
26253impia 1115 . . 3 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋𝑌) → (𝑋 + 𝑍) ≠ (𝑌 + 𝑍))
275, 4, 20, 26syl3anc 1369 . 2 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 + 𝑍) ≠ (𝑌 + 𝑍))
28 ovex 7288 . . . 4 (𝑋 + 𝑍) ∈ V
29 ovex 7288 . . . 4 (𝑌 + 𝑍) ∈ V
309, 10pltval 17965 . . . 4 ((𝐺 ∈ oGrp ∧ (𝑋 + 𝑍) ∈ V ∧ (𝑌 + 𝑍) ∈ V) → ((𝑋 + 𝑍) < (𝑌 + 𝑍) ↔ ((𝑋 + 𝑍)(le‘𝐺)(𝑌 + 𝑍) ∧ (𝑋 + 𝑍) ≠ (𝑌 + 𝑍))))
3128, 29, 30mp3an23 1451 . . 3 (𝐺 ∈ oGrp → ((𝑋 + 𝑍) < (𝑌 + 𝑍) ↔ ((𝑋 + 𝑍)(le‘𝐺)(𝑌 + 𝑍) ∧ (𝑋 + 𝑍) ≠ (𝑌 + 𝑍))))
32313ad2ant1 1131 . 2 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → ((𝑋 + 𝑍) < (𝑌 + 𝑍) ↔ ((𝑋 + 𝑍)(le‘𝐺)(𝑌 + 𝑍) ∧ (𝑋 + 𝑍) ≠ (𝑌 + 𝑍))))
3317, 27, 32mpbir2and 709 1 ((𝐺 ∈ oGrp ∧ (𝑋𝐵𝑌𝐵𝑍𝐵) ∧ 𝑋 < 𝑌) → (𝑋 + 𝑍) < (𝑌 + 𝑍))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 395  w3a 1085   = wceq 1539  wcel 2108  wne 2942  Vcvv 3422   class class class wbr 5070  cfv 6418  (class class class)co 7255  Basecbs 16840  +gcplusg 16888  lecple 16895  ltcplt 17941  Grpcgrp 18492  oMndcomnd 31225  oGrpcogrp 31226
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pr 5347
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-iota 6376  df-fun 6420  df-fv 6426  df-riota 7212  df-ov 7258  df-0g 17069  df-plt 17963  df-mgm 18241  df-sgrp 18290  df-mnd 18301  df-grp 18495  df-omnd 31227  df-ogrp 31228
This theorem is referenced by:  ogrpaddltbi  31246  ogrpaddltrd  31247  ogrpinv0lt  31250  isarchi3  31343  archirngz  31345  archiabllem1b  31348  archiabllem2c  31351  ofldchr  31415
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