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| Mirrors > Home > ILE Home > Th. List > axltwlin | GIF version | ||
| Description: Real number less-than is weakly linear. Axiom for real and complex numbers, derived from set theory. This restates ax-pre-ltwlin 8128 with ordering on the extended reals. (Contributed by Jim Kingdon, 15-Jan-2020.) |
| Ref | Expression |
|---|---|
| axltwlin | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐵 → (𝐴 < 𝐶 ∨ 𝐶 < 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-pre-ltwlin 8128 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 <ℝ 𝐵 → (𝐴 <ℝ 𝐶 ∨ 𝐶 <ℝ 𝐵))) | |
| 2 | ltxrlt 8228 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 ↔ 𝐴 <ℝ 𝐵)) | |
| 3 | 2 | 3adant3 1041 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐵 ↔ 𝐴 <ℝ 𝐵)) |
| 4 | ltxrlt 8228 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐶 ↔ 𝐴 <ℝ 𝐶)) | |
| 5 | 4 | 3adant2 1040 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐶 ↔ 𝐴 <ℝ 𝐶)) |
| 6 | ltxrlt 8228 | . . . . 5 ⊢ ((𝐶 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐶 < 𝐵 ↔ 𝐶 <ℝ 𝐵)) | |
| 7 | 6 | ancoms 268 | . . . 4 ⊢ ((𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐶 < 𝐵 ↔ 𝐶 <ℝ 𝐵)) |
| 8 | 7 | 3adant1 1039 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐶 < 𝐵 ↔ 𝐶 <ℝ 𝐵)) |
| 9 | 5, 8 | orbi12d 798 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → ((𝐴 < 𝐶 ∨ 𝐶 < 𝐵) ↔ (𝐴 <ℝ 𝐶 ∨ 𝐶 <ℝ 𝐵))) |
| 10 | 1, 3, 9 | 3imtr4d 203 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 < 𝐵 → (𝐴 < 𝐶 ∨ 𝐶 < 𝐵))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 ∨ wo 713 ∧ w3a 1002 ∈ wcel 2200 class class class wbr 4083 ℝcr 8014 <ℝ cltrr 8019 < clt 8197 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4259 ax-pr 4294 ax-un 4525 ax-setind 4630 ax-cnex 8106 ax-resscn 8107 ax-pre-ltwlin 8128 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-opab 4146 df-xp 4726 df-pnf 8199 df-mnf 8200 df-ltxr 8202 |
| This theorem is referenced by: ltso 8240 letr 8245 lelttr 8251 ltletr 8252 gt0add 8736 reapcotr 8761 sup3exmid 9120 xrltso 10009 rebtwn2zlemstep 10489 expnbnd 10902 leabs 11606 ltabs 11619 abslt 11620 absle 11621 maxabslemlub 11739 suplociccreex 15319 ivthinclemloc 15336 ivthdichlem 15346 cnplimclemle 15363 reeff1o 15468 efltlemlt 15469 sin0pilem2 15477 coseq0negpitopi 15531 cos02pilt1 15546 |
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