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Theorem axpre-lttrn 7660
Description: Ordering on reals is transitive. Axiom for real and complex numbers, derived from set theory. This construction-dependent theorem should not be referenced directly; instead, use ax-pre-lttrn 7702. (Contributed by NM, 19-May-1996.) (Revised by Mario Carneiro, 16-Jun-2013.) (New usage is discouraged.)
Assertion
Ref Expression
axpre-lttrn ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵𝐵 < 𝐶) → 𝐴 < 𝐶))

Proof of Theorem axpre-lttrn
Dummy variables 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 elreal 7604 . 2 (𝐴 ∈ ℝ ↔ ∃𝑥R𝑥, 0R⟩ = 𝐴)
2 elreal 7604 . 2 (𝐵 ∈ ℝ ↔ ∃𝑦R𝑦, 0R⟩ = 𝐵)
3 elreal 7604 . 2 (𝐶 ∈ ℝ ↔ ∃𝑧R𝑧, 0R⟩ = 𝐶)
4 breq1 3902 . . . 4 (⟨𝑥, 0R⟩ = 𝐴 → (⟨𝑥, 0R⟩ <𝑦, 0R⟩ ↔ 𝐴 <𝑦, 0R⟩))
54anbi1d 460 . . 3 (⟨𝑥, 0R⟩ = 𝐴 → ((⟨𝑥, 0R⟩ <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) ↔ (𝐴 <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩)))
6 breq1 3902 . . 3 (⟨𝑥, 0R⟩ = 𝐴 → (⟨𝑥, 0R⟩ <𝑧, 0R⟩ ↔ 𝐴 <𝑧, 0R⟩))
75, 6imbi12d 233 . 2 (⟨𝑥, 0R⟩ = 𝐴 → (((⟨𝑥, 0R⟩ <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) → ⟨𝑥, 0R⟩ <𝑧, 0R⟩) ↔ ((𝐴 <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) → 𝐴 <𝑧, 0R⟩)))
8 breq2 3903 . . . 4 (⟨𝑦, 0R⟩ = 𝐵 → (𝐴 <𝑦, 0R⟩ ↔ 𝐴 < 𝐵))
9 breq1 3902 . . . 4 (⟨𝑦, 0R⟩ = 𝐵 → (⟨𝑦, 0R⟩ <𝑧, 0R⟩ ↔ 𝐵 <𝑧, 0R⟩))
108, 9anbi12d 464 . . 3 (⟨𝑦, 0R⟩ = 𝐵 → ((𝐴 <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) ↔ (𝐴 < 𝐵𝐵 <𝑧, 0R⟩)))
1110imbi1d 230 . 2 (⟨𝑦, 0R⟩ = 𝐵 → (((𝐴 <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) → 𝐴 <𝑧, 0R⟩) ↔ ((𝐴 < 𝐵𝐵 <𝑧, 0R⟩) → 𝐴 <𝑧, 0R⟩)))
12 breq2 3903 . . . 4 (⟨𝑧, 0R⟩ = 𝐶 → (𝐵 <𝑧, 0R⟩ ↔ 𝐵 < 𝐶))
1312anbi2d 459 . . 3 (⟨𝑧, 0R⟩ = 𝐶 → ((𝐴 < 𝐵𝐵 <𝑧, 0R⟩) ↔ (𝐴 < 𝐵𝐵 < 𝐶)))
14 breq2 3903 . . 3 (⟨𝑧, 0R⟩ = 𝐶 → (𝐴 <𝑧, 0R⟩ ↔ 𝐴 < 𝐶))
1513, 14imbi12d 233 . 2 (⟨𝑧, 0R⟩ = 𝐶 → (((𝐴 < 𝐵𝐵 <𝑧, 0R⟩) → 𝐴 <𝑧, 0R⟩) ↔ ((𝐴 < 𝐵𝐵 < 𝐶) → 𝐴 < 𝐶)))
16 ltresr 7615 . . . . 5 (⟨𝑥, 0R⟩ <𝑦, 0R⟩ ↔ 𝑥 <R 𝑦)
17 ltresr 7615 . . . . 5 (⟨𝑦, 0R⟩ <𝑧, 0R⟩ ↔ 𝑦 <R 𝑧)
18 ltsosr 7540 . . . . . 6 <R Or R
19 ltrelsr 7514 . . . . . 6 <R ⊆ (R × R)
2018, 19sotri 4904 . . . . 5 ((𝑥 <R 𝑦𝑦 <R 𝑧) → 𝑥 <R 𝑧)
2116, 17, 20syl2anb 289 . . . 4 ((⟨𝑥, 0R⟩ <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) → 𝑥 <R 𝑧)
22 ltresr 7615 . . . 4 (⟨𝑥, 0R⟩ <𝑧, 0R⟩ ↔ 𝑥 <R 𝑧)
2321, 22sylibr 133 . . 3 ((⟨𝑥, 0R⟩ <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) → ⟨𝑥, 0R⟩ <𝑧, 0R⟩)
2423a1i 9 . 2 ((𝑥R𝑦R𝑧R) → ((⟨𝑥, 0R⟩ <𝑦, 0R⟩ ∧ ⟨𝑦, 0R⟩ <𝑧, 0R⟩) → ⟨𝑥, 0R⟩ <𝑧, 0R⟩))
251, 2, 3, 7, 11, 15, 243gencl 2694 1 ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐵𝐵 < 𝐶) → 𝐴 < 𝐶))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 103  w3a 947   = wceq 1316  wcel 1465  cop 3500   class class class wbr 3899  Rcnr 7073  0Rc0r 7074   <R cltr 7079  cr 7587   < cltrr 7592
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 588  ax-in2 589  ax-io 683  ax-5 1408  ax-7 1409  ax-gen 1410  ax-ie1 1454  ax-ie2 1455  ax-8 1467  ax-10 1468  ax-11 1469  ax-i12 1470  ax-bndl 1471  ax-4 1472  ax-13 1476  ax-14 1477  ax-17 1491  ax-i9 1495  ax-ial 1499  ax-i5r 1500  ax-ext 2099  ax-coll 4013  ax-sep 4016  ax-nul 4024  ax-pow 4068  ax-pr 4101  ax-un 4325  ax-setind 4422  ax-iinf 4472
This theorem depends on definitions:  df-bi 116  df-dc 805  df-3or 948  df-3an 949  df-tru 1319  df-fal 1322  df-nf 1422  df-sb 1721  df-eu 1980  df-mo 1981  df-clab 2104  df-cleq 2110  df-clel 2113  df-nfc 2247  df-ne 2286  df-ral 2398  df-rex 2399  df-reu 2400  df-rab 2402  df-v 2662  df-sbc 2883  df-csb 2976  df-dif 3043  df-un 3045  df-in 3047  df-ss 3054  df-nul 3334  df-pw 3482  df-sn 3503  df-pr 3504  df-op 3506  df-uni 3707  df-int 3742  df-iun 3785  df-br 3900  df-opab 3960  df-mpt 3961  df-tr 3997  df-eprel 4181  df-id 4185  df-po 4188  df-iso 4189  df-iord 4258  df-on 4260  df-suc 4263  df-iom 4475  df-xp 4515  df-rel 4516  df-cnv 4517  df-co 4518  df-dm 4519  df-rn 4520  df-res 4521  df-ima 4522  df-iota 5058  df-fun 5095  df-fn 5096  df-f 5097  df-f1 5098  df-fo 5099  df-f1o 5100  df-fv 5101  df-ov 5745  df-oprab 5746  df-mpo 5747  df-1st 6006  df-2nd 6007  df-recs 6170  df-irdg 6235  df-1o 6281  df-2o 6282  df-oadd 6285  df-omul 6286  df-er 6397  df-ec 6399  df-qs 6403  df-ni 7080  df-pli 7081  df-mi 7082  df-lti 7083  df-plpq 7120  df-mpq 7121  df-enq 7123  df-nqqs 7124  df-plqqs 7125  df-mqqs 7126  df-1nqqs 7127  df-rq 7128  df-ltnqqs 7129  df-enq0 7200  df-nq0 7201  df-0nq0 7202  df-plq0 7203  df-mq0 7204  df-inp 7242  df-i1p 7243  df-iplp 7244  df-iltp 7246  df-enr 7502  df-nr 7503  df-ltr 7506  df-0r 7507  df-r 7598  df-lt 7601
This theorem is referenced by: (None)
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