| Mathbox for Thierry Arnoux |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > reofld | Structured version Visualization version GIF version | ||
| Description: The real numbers form an ordered field. (Contributed by Thierry Arnoux, 21-Jan-2018.) |
| Ref | Expression |
|---|---|
| reofld | ⊢ ℝfld ∈ oField |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | refld 21659 | . 2 ⊢ ℝfld ∈ Field | |
| 2 | isfld 20777 | . . . . 5 ⊢ (ℝfld ∈ Field ↔ (ℝfld ∈ DivRing ∧ ℝfld ∈ CRing)) | |
| 3 | 2 | simplbi 500 | . . . 4 ⊢ (ℝfld ∈ Field → ℝfld ∈ DivRing) |
| 4 | drngring 20773 | . . . 4 ⊢ (ℝfld ∈ DivRing → ℝfld ∈ Ring) | |
| 5 | 1, 3, 4 | mp2b 10 | . . 3 ⊢ ℝfld ∈ Ring |
| 6 | ringgrp 20275 | . . . . 5 ⊢ (ℝfld ∈ Ring → ℝfld ∈ Grp) | |
| 7 | 5, 6 | ax-mp 5 | . . . 4 ⊢ ℝfld ∈ Grp |
| 8 | grpmnd 18973 | . . . . . 6 ⊢ (ℝfld ∈ Grp → ℝfld ∈ Mnd) | |
| 9 | 7, 8 | ax-mp 5 | . . . . 5 ⊢ ℝfld ∈ Mnd |
| 10 | retos 21658 | . . . . 5 ⊢ ℝfld ∈ Toset | |
| 11 | simpl 486 | . . . . . . . . . 10 ⊢ ((𝑎 ∈ ℝ ∧ (𝑏 ∈ ℝ ∧ 𝑐 ∈ ℝ ∧ 𝑎 ≤ 𝑏)) → 𝑎 ∈ ℝ) | |
| 12 | simpr1 1207 | . . . . . . . . . 10 ⊢ ((𝑎 ∈ ℝ ∧ (𝑏 ∈ ℝ ∧ 𝑐 ∈ ℝ ∧ 𝑎 ≤ 𝑏)) → 𝑏 ∈ ℝ) | |
| 13 | simpr2 1208 | . . . . . . . . . 10 ⊢ ((𝑎 ∈ ℝ ∧ (𝑏 ∈ ℝ ∧ 𝑐 ∈ ℝ ∧ 𝑎 ≤ 𝑏)) → 𝑐 ∈ ℝ) | |
| 14 | simpr3 1209 | . . . . . . . . . 10 ⊢ ((𝑎 ∈ ℝ ∧ (𝑏 ∈ ℝ ∧ 𝑐 ∈ ℝ ∧ 𝑎 ≤ 𝑏)) → 𝑎 ≤ 𝑏) | |
| 15 | 11, 12, 13, 14 | leadd1dd 11795 | . . . . . . . . 9 ⊢ ((𝑎 ∈ ℝ ∧ (𝑏 ∈ ℝ ∧ 𝑐 ∈ ℝ ∧ 𝑎 ≤ 𝑏)) → (𝑎 + 𝑐) ≤ (𝑏 + 𝑐)) |
| 16 | 15 | 3anassrs 1373 | . . . . . . . 8 ⊢ ((((𝑎 ∈ ℝ ∧ 𝑏 ∈ ℝ) ∧ 𝑐 ∈ ℝ) ∧ 𝑎 ≤ 𝑏) → (𝑎 + 𝑐) ≤ (𝑏 + 𝑐)) |
| 17 | 16 | ex 416 | . . . . . . 7 ⊢ (((𝑎 ∈ ℝ ∧ 𝑏 ∈ ℝ) ∧ 𝑐 ∈ ℝ) → (𝑎 ≤ 𝑏 → (𝑎 + 𝑐) ≤ (𝑏 + 𝑐))) |
| 18 | 17 | 3impa 1121 | . . . . . 6 ⊢ ((𝑎 ∈ ℝ ∧ 𝑏 ∈ ℝ ∧ 𝑐 ∈ ℝ) → (𝑎 ≤ 𝑏 → (𝑎 + 𝑐) ≤ (𝑏 + 𝑐))) |
| 19 | 18 | rgen3 3206 | . . . . 5 ⊢ ∀𝑎 ∈ ℝ ∀𝑏 ∈ ℝ ∀𝑐 ∈ ℝ (𝑎 ≤ 𝑏 → (𝑎 + 𝑐) ≤ (𝑏 + 𝑐)) |
| 20 | rebase 21646 | . . . . . 6 ⊢ ℝ = (Base‘ℝfld) | |
| 21 | replusg 21650 | . . . . . 6 ⊢ + = (+g‘ℝfld) | |
| 22 | rele2 21654 | . . . . . 6 ⊢ ≤ = (le‘ℝfld) | |
| 23 | 20, 21, 22 | isomnd 20154 | . . . . 5 ⊢ (ℝfld ∈ oMnd ↔ (ℝfld ∈ Mnd ∧ ℝfld ∈ Toset ∧ ∀𝑎 ∈ ℝ ∀𝑏 ∈ ℝ ∀𝑐 ∈ ℝ (𝑎 ≤ 𝑏 → (𝑎 + 𝑐) ≤ (𝑏 + 𝑐)))) |
| 24 | 9, 10, 19, 23 | mpbir3an 1354 | . . . 4 ⊢ ℝfld ∈ oMnd |
| 25 | isogrp 20155 | . . . 4 ⊢ (ℝfld ∈ oGrp ↔ (ℝfld ∈ Grp ∧ ℝfld ∈ oMnd)) | |
| 26 | 7, 24, 25 | mpbir2an 721 | . . 3 ⊢ ℝfld ∈ oGrp |
| 27 | mulge0 11699 | . . . . . 6 ⊢ (((𝑎 ∈ ℝ ∧ 0 ≤ 𝑎) ∧ (𝑏 ∈ ℝ ∧ 0 ≤ 𝑏)) → 0 ≤ (𝑎 · 𝑏)) | |
| 28 | 27 | an4s 670 | . . . . 5 ⊢ (((𝑎 ∈ ℝ ∧ 𝑏 ∈ ℝ) ∧ (0 ≤ 𝑎 ∧ 0 ≤ 𝑏)) → 0 ≤ (𝑎 · 𝑏)) |
| 29 | 28 | ex 416 | . . . 4 ⊢ ((𝑎 ∈ ℝ ∧ 𝑏 ∈ ℝ) → ((0 ≤ 𝑎 ∧ 0 ≤ 𝑏) → 0 ≤ (𝑎 · 𝑏))) |
| 30 | 29 | rgen2 3201 | . . 3 ⊢ ∀𝑎 ∈ ℝ ∀𝑏 ∈ ℝ ((0 ≤ 𝑎 ∧ 0 ≤ 𝑏) → 0 ≤ (𝑎 · 𝑏)) |
| 31 | re0g 21652 | . . . 4 ⊢ 0 = (0g‘ℝfld) | |
| 32 | remulr 21651 | . . . 4 ⊢ · = (.r‘ℝfld) | |
| 33 | 20, 31, 32, 22 | isorng 20898 | . . 3 ⊢ (ℝfld ∈ oRing ↔ (ℝfld ∈ Ring ∧ ℝfld ∈ oGrp ∧ ∀𝑎 ∈ ℝ ∀𝑏 ∈ ℝ ((0 ≤ 𝑎 ∧ 0 ≤ 𝑏) → 0 ≤ (𝑎 · 𝑏)))) |
| 34 | 5, 26, 30, 33 | mpbir3an 1354 | . 2 ⊢ ℝfld ∈ oRing |
| 35 | isofld 20901 | . 2 ⊢ (ℝfld ∈ oField ↔ (ℝfld ∈ Field ∧ ℝfld ∈ oRing)) | |
| 36 | 1, 34, 35 | mpbir2an 721 | 1 ⊢ ℝfld ∈ oField |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1097 ∈ wcel 2141 ∀wral 3075 class class class wbr 5097 (class class class)co 7391 ℝcr 11066 0cc0 11067 + caddc 11070 · cmul 11072 ≤ cle 11211 Tosetctos 18437 Mndcmnd 18759 Grpcgrp 18966 oMndcomnd 20150 oGrpcogrp 20151 Ringcrg 20270 CRingccrg 20271 DivRingcdr 20766 Fieldcfield 20767 oRingcorng 20894 oFieldcofld 20895 ℝfldcrefld 21644 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5224 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7713 ax-cnex 11123 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-addrcl 11128 ax-mulcl 11129 ax-mulrcl 11130 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-i2m1 11135 ax-1ne0 11136 ax-1rid 11137 ax-rnegex 11138 ax-rrecex 11139 ax-cnre 11140 ax-pre-lttri 11141 ax-pre-lttrn 11142 ax-pre-ltadd 11143 ax-pre-mulgt0 11144 ax-addf 11146 ax-mulf 11147 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-tp 4584 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6283 df-ord 6344 df-on 6345 df-lim 6346 df-suc 6347 df-iota 6472 df-fun 6518 df-fn 6519 df-f 6520 df-f1 6521 df-fo 6522 df-f1o 6523 df-fv 6524 df-riota 7348 df-ov 7394 df-oprab 7395 df-mpo 7396 df-om 7842 df-1st 7965 df-2nd 7966 df-tpos 8200 df-frecs 8256 df-wrecs 8287 df-recs 8336 df-rdg 8375 df-1o 8431 df-er 8672 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-pnf 11212 df-mnf 11213 df-xr 11214 df-ltxr 11215 df-le 11216 df-sub 11410 df-neg 11411 df-div 11839 df-nn 12205 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 df-7 12279 df-8 12280 df-9 12281 df-n0 12476 df-z 12563 df-dec 12683 df-uz 12834 df-fz 13507 df-struct 17174 df-sets 17191 df-slot 17209 df-ndx 17221 df-base 17237 df-ress 17258 df-plusg 17290 df-mulr 17291 df-starv 17292 df-tset 17296 df-ple 17297 df-ds 17299 df-unif 17300 df-0g 17461 df-proset 18317 df-poset 18336 df-plt 18351 df-toset 18438 df-ps 18589 df-tsr 18590 df-mgm 18665 df-sgrp 18744 df-mnd 18760 df-grp 18969 df-minusg 18970 df-subg 19156 df-cmn 19813 df-abl 19814 df-omnd 20152 df-ogrp 20153 df-mgp 20178 df-rng 20190 df-ur 20219 df-ring 20272 df-cring 20273 df-oppr 20373 df-dvdsr 20393 df-unit 20394 df-invr 20424 df-dvr 20437 df-subrng 20583 df-subrg 20607 df-drng 20768 df-field 20769 df-orng 20896 df-ofld 20897 df-cnfld 21413 df-refld 21645 |
| This theorem is referenced by: nn0omnd 33491 rearchi 33493 rerrext 34267 cnrrext 34268 |
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