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Mirrors > Home > MPE Home > Th. List > cxplea | Structured version Visualization version GIF version |
Description: Ordering property for complex exponentiation. (Contributed by Mario Carneiro, 10-Sep-2014.) |
Ref | Expression |
---|---|
cxplea | ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl3 1232 | . . 3 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 𝐵 ≤ 𝐶) | |
2 | simpl1l 1279 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 𝐴 ∈ ℝ) | |
3 | simpr 479 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 1 < 𝐴) | |
4 | simpl2 1230 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ)) | |
5 | cxple 24640 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 1 < 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ)) → (𝐵 ≤ 𝐶 ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) | |
6 | 2, 3, 4, 5 | syl21anc 1476 | . . 3 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐵 ≤ 𝐶 ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
7 | 1, 6 | mpbid 222 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
8 | 1le1 10847 | . . . . 5 ⊢ 1 ≤ 1 | |
9 | simp2l 1242 | . . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐵 ∈ ℝ) | |
10 | 9 | recnd 10260 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐵 ∈ ℂ) |
11 | 1cxp 24617 | . . . . . . 7 ⊢ (𝐵 ∈ ℂ → (1↑𝑐𝐵) = 1) | |
12 | 10, 11 | syl 17 | . . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1↑𝑐𝐵) = 1) |
13 | simp2r 1243 | . . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐶 ∈ ℝ) | |
14 | 13 | recnd 10260 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐶 ∈ ℂ) |
15 | 1cxp 24617 | . . . . . . 7 ⊢ (𝐶 ∈ ℂ → (1↑𝑐𝐶) = 1) | |
16 | 14, 15 | syl 17 | . . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1↑𝑐𝐶) = 1) |
17 | 12, 16 | breq12d 4817 | . . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → ((1↑𝑐𝐵) ≤ (1↑𝑐𝐶) ↔ 1 ≤ 1)) |
18 | 8, 17 | mpbiri 248 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1↑𝑐𝐵) ≤ (1↑𝑐𝐶)) |
19 | oveq1 6820 | . . . . 5 ⊢ (1 = 𝐴 → (1↑𝑐𝐵) = (𝐴↑𝑐𝐵)) | |
20 | oveq1 6820 | . . . . 5 ⊢ (1 = 𝐴 → (1↑𝑐𝐶) = (𝐴↑𝑐𝐶)) | |
21 | 19, 20 | breq12d 4817 | . . . 4 ⊢ (1 = 𝐴 → ((1↑𝑐𝐵) ≤ (1↑𝑐𝐶) ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
22 | 18, 21 | syl5ibcom 235 | . . 3 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1 = 𝐴 → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
23 | 22 | imp 444 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 = 𝐴) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
24 | 1re 10231 | . . . . 5 ⊢ 1 ∈ ℝ | |
25 | leloe 10316 | . . . . 5 ⊢ ((1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (1 ≤ 𝐴 ↔ (1 < 𝐴 ∨ 1 = 𝐴))) | |
26 | 24, 25 | mpan 708 | . . . 4 ⊢ (𝐴 ∈ ℝ → (1 ≤ 𝐴 ↔ (1 < 𝐴 ∨ 1 = 𝐴))) |
27 | 26 | biimpa 502 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) → (1 < 𝐴 ∨ 1 = 𝐴)) |
28 | 27 | 3ad2ant1 1128 | . 2 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1 < 𝐴 ∨ 1 = 𝐴)) |
29 | 7, 23, 28 | mpjaodan 862 | 1 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∨ wo 382 ∧ wa 383 ∧ w3a 1072 = wceq 1632 ∈ wcel 2139 class class class wbr 4804 (class class class)co 6813 ℂcc 10126 ℝcr 10127 1c1 10129 < clt 10266 ≤ cle 10267 ↑𝑐ccxp 24501 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1871 ax-4 1886 ax-5 1988 ax-6 2054 ax-7 2090 ax-8 2141 ax-9 2148 ax-10 2168 ax-11 2183 ax-12 2196 ax-13 2391 ax-ext 2740 ax-rep 4923 ax-sep 4933 ax-nul 4941 ax-pow 4992 ax-pr 5055 ax-un 7114 ax-inf2 8711 ax-cnex 10184 ax-resscn 10185 ax-1cn 10186 ax-icn 10187 ax-addcl 10188 ax-addrcl 10189 ax-mulcl 10190 ax-mulrcl 10191 ax-mulcom 10192 ax-addass 10193 ax-mulass 10194 ax-distr 10195 ax-i2m1 10196 ax-1ne0 10197 ax-1rid 10198 ax-rnegex 10199 ax-rrecex 10200 ax-cnre 10201 ax-pre-lttri 10202 ax-pre-lttrn 10203 ax-pre-ltadd 10204 ax-pre-mulgt0 10205 ax-pre-sup 10206 ax-addf 10207 ax-mulf 10208 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1073 df-3an 1074 df-tru 1635 df-fal 1638 df-ex 1854 df-nf 1859 df-sb 2047 df-eu 2611 df-mo 2612 df-clab 2747 df-cleq 2753 df-clel 2756 df-nfc 2891 df-ne 2933 df-nel 3036 df-ral 3055 df-rex 3056 df-reu 3057 df-rmo 3058 df-rab 3059 df-v 3342 df-sbc 3577 df-csb 3675 df-dif 3718 df-un 3720 df-in 3722 df-ss 3729 df-pss 3731 df-nul 4059 df-if 4231 df-pw 4304 df-sn 4322 df-pr 4324 df-tp 4326 df-op 4328 df-uni 4589 df-int 4628 df-iun 4674 df-iin 4675 df-br 4805 df-opab 4865 df-mpt 4882 df-tr 4905 df-id 5174 df-eprel 5179 df-po 5187 df-so 5188 df-fr 5225 df-se 5226 df-we 5227 df-xp 5272 df-rel 5273 df-cnv 5274 df-co 5275 df-dm 5276 df-rn 5277 df-res 5278 df-ima 5279 df-pred 5841 df-ord 5887 df-on 5888 df-lim 5889 df-suc 5890 df-iota 6012 df-fun 6051 df-fn 6052 df-f 6053 df-f1 6054 df-fo 6055 df-f1o 6056 df-fv 6057 df-isom 6058 df-riota 6774 df-ov 6816 df-oprab 6817 df-mpt2 6818 df-of 7062 df-om 7231 df-1st 7333 df-2nd 7334 df-supp 7464 df-wrecs 7576 df-recs 7637 df-rdg 7675 df-1o 7729 df-2o 7730 df-oadd 7733 df-er 7911 df-map 8025 df-pm 8026 df-ixp 8075 df-en 8122 df-dom 8123 df-sdom 8124 df-fin 8125 df-fsupp 8441 df-fi 8482 df-sup 8513 df-inf 8514 df-oi 8580 df-card 8955 df-cda 9182 df-pnf 10268 df-mnf 10269 df-xr 10270 df-ltxr 10271 df-le 10272 df-sub 10460 df-neg 10461 df-div 10877 df-nn 11213 df-2 11271 df-3 11272 df-4 11273 df-5 11274 df-6 11275 df-7 11276 df-8 11277 df-9 11278 df-n0 11485 df-z 11570 df-dec 11686 df-uz 11880 df-q 11982 df-rp 12026 df-xneg 12139 df-xadd 12140 df-xmul 12141 df-ioo 12372 df-ioc 12373 df-ico 12374 df-icc 12375 df-fz 12520 df-fzo 12660 df-fl 12787 df-mod 12863 df-seq 12996 df-exp 13055 df-fac 13255 df-bc 13284 df-hash 13312 df-shft 14006 df-cj 14038 df-re 14039 df-im 14040 df-sqrt 14174 df-abs 14175 df-limsup 14401 df-clim 14418 df-rlim 14419 df-sum 14616 df-ef 14997 df-sin 14999 df-cos 15000 df-pi 15002 df-struct 16061 df-ndx 16062 df-slot 16063 df-base 16065 df-sets 16066 df-ress 16067 df-plusg 16156 df-mulr 16157 df-starv 16158 df-sca 16159 df-vsca 16160 df-ip 16161 df-tset 16162 df-ple 16163 df-ds 16166 df-unif 16167 df-hom 16168 df-cco 16169 df-rest 16285 df-topn 16286 df-0g 16304 df-gsum 16305 df-topgen 16306 df-pt 16307 df-prds 16310 df-xrs 16364 df-qtop 16369 df-imas 16370 df-xps 16372 df-mre 16448 df-mrc 16449 df-acs 16451 df-mgm 17443 df-sgrp 17485 df-mnd 17496 df-submnd 17537 df-mulg 17742 df-cntz 17950 df-cmn 18395 df-psmet 19940 df-xmet 19941 df-met 19942 df-bl 19943 df-mopn 19944 df-fbas 19945 df-fg 19946 df-cnfld 19949 df-top 20901 df-topon 20918 df-topsp 20939 df-bases 20952 df-cld 21025 df-ntr 21026 df-cls 21027 df-nei 21104 df-lp 21142 df-perf 21143 df-cn 21233 df-cnp 21234 df-haus 21321 df-tx 21567 df-hmeo 21760 df-fil 21851 df-fm 21943 df-flim 21944 df-flf 21945 df-xms 22326 df-ms 22327 df-tms 22328 df-cncf 22882 df-limc 23829 df-dv 23830 df-log 24502 df-cxp 24503 |
This theorem is referenced by: cxplead 24666 |
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