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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 1192 | . . 3 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 𝐵 ≤ 𝐶) | |
2 | simpl1l 1223 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 𝐴 ∈ ℝ) | |
3 | simpr 484 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 1 < 𝐴) | |
4 | simpl2 1191 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ)) | |
5 | cxple 26751 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 1 < 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ)) → (𝐵 ≤ 𝐶 ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) | |
6 | 2, 3, 4, 5 | syl21anc 838 | . . 3 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐵 ≤ 𝐶 ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
7 | 1, 6 | mpbid 232 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
8 | 1le1 11888 | . . . . 5 ⊢ 1 ≤ 1 | |
9 | simp2l 1198 | . . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐵 ∈ ℝ) | |
10 | 9 | recnd 11286 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐵 ∈ ℂ) |
11 | 1cxp 26728 | . . . . . . 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 1199 | . . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐶 ∈ ℝ) | |
14 | 13 | recnd 11286 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐶 ∈ ℂ) |
15 | 1cxp 26728 | . . . . . . 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 5160 | . . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → ((1↑𝑐𝐵) ≤ (1↑𝑐𝐶) ↔ 1 ≤ 1)) |
18 | 8, 17 | mpbiri 258 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1↑𝑐𝐵) ≤ (1↑𝑐𝐶)) |
19 | oveq1 7437 | . . . . 5 ⊢ (1 = 𝐴 → (1↑𝑐𝐵) = (𝐴↑𝑐𝐵)) | |
20 | oveq1 7437 | . . . . 5 ⊢ (1 = 𝐴 → (1↑𝑐𝐶) = (𝐴↑𝑐𝐶)) | |
21 | 19, 20 | breq12d 5160 | . . . 4 ⊢ (1 = 𝐴 → ((1↑𝑐𝐵) ≤ (1↑𝑐𝐶) ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
22 | 18, 21 | syl5ibcom 245 | . . 3 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1 = 𝐴 → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
23 | 22 | imp 406 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 = 𝐴) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
24 | 1re 11258 | . . . . 5 ⊢ 1 ∈ ℝ | |
25 | leloe 11344 | . . . . 5 ⊢ ((1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (1 ≤ 𝐴 ↔ (1 < 𝐴 ∨ 1 = 𝐴))) | |
26 | 24, 25 | mpan 690 | . . . 4 ⊢ (𝐴 ∈ ℝ → (1 ≤ 𝐴 ↔ (1 < 𝐴 ∨ 1 = 𝐴))) |
27 | 26 | biimpa 476 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) → (1 < 𝐴 ∨ 1 = 𝐴)) |
28 | 27 | 3ad2ant1 1132 | . 2 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1 < 𝐴 ∨ 1 = 𝐴)) |
29 | 7, 23, 28 | mpjaodan 960 | 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 206 ∧ wa 395 ∨ wo 847 ∧ w3a 1086 = wceq 1536 ∈ wcel 2105 class class class wbr 5147 (class class class)co 7430 ℂcc 11150 ℝcr 11151 1c1 11153 < clt 11292 ≤ cle 11293 ↑𝑐ccxp 26611 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1791 ax-4 1805 ax-5 1907 ax-6 1964 ax-7 2004 ax-8 2107 ax-9 2115 ax-10 2138 ax-11 2154 ax-12 2174 ax-ext 2705 ax-rep 5284 ax-sep 5301 ax-nul 5311 ax-pow 5370 ax-pr 5437 ax-un 7753 ax-inf2 9678 ax-cnex 11208 ax-resscn 11209 ax-1cn 11210 ax-icn 11211 ax-addcl 11212 ax-addrcl 11213 ax-mulcl 11214 ax-mulrcl 11215 ax-mulcom 11216 ax-addass 11217 ax-mulass 11218 ax-distr 11219 ax-i2m1 11220 ax-1ne0 11221 ax-1rid 11222 ax-rnegex 11223 ax-rrecex 11224 ax-cnre 11225 ax-pre-lttri 11226 ax-pre-lttrn 11227 ax-pre-ltadd 11228 ax-pre-mulgt0 11229 ax-pre-sup 11230 ax-addf 11231 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1539 df-fal 1549 df-ex 1776 df-nf 1780 df-sb 2062 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2726 df-clel 2813 df-nfc 2889 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3377 df-reu 3378 df-rab 3433 df-v 3479 df-sbc 3791 df-csb 3908 df-dif 3965 df-un 3967 df-in 3969 df-ss 3979 df-pss 3982 df-nul 4339 df-if 4531 df-pw 4606 df-sn 4631 df-pr 4633 df-tp 4635 df-op 4637 df-uni 4912 df-int 4951 df-iun 4997 df-iin 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5582 df-eprel 5588 df-po 5596 df-so 5597 df-fr 5640 df-se 5641 df-we 5642 df-xp 5694 df-rel 5695 df-cnv 5696 df-co 5697 df-dm 5698 df-rn 5699 df-res 5700 df-ima 5701 df-pred 6322 df-ord 6388 df-on 6389 df-lim 6390 df-suc 6391 df-iota 6515 df-fun 6564 df-fn 6565 df-f 6566 df-f1 6567 df-fo 6568 df-f1o 6569 df-fv 6570 df-isom 6571 df-riota 7387 df-ov 7433 df-oprab 7434 df-mpo 7435 df-of 7696 df-om 7887 df-1st 8012 df-2nd 8013 df-supp 8184 df-frecs 8304 df-wrecs 8335 df-recs 8409 df-rdg 8448 df-1o 8504 df-2o 8505 df-er 8743 df-map 8866 df-pm 8867 df-ixp 8936 df-en 8984 df-dom 8985 df-sdom 8986 df-fin 8987 df-fsupp 9399 df-fi 9448 df-sup 9479 df-inf 9480 df-oi 9547 df-card 9976 df-pnf 11294 df-mnf 11295 df-xr 11296 df-ltxr 11297 df-le 11298 df-sub 11491 df-neg 11492 df-div 11918 df-nn 12264 df-2 12326 df-3 12327 df-4 12328 df-5 12329 df-6 12330 df-7 12331 df-8 12332 df-9 12333 df-n0 12524 df-z 12611 df-dec 12731 df-uz 12876 df-q 12988 df-rp 13032 df-xneg 13151 df-xadd 13152 df-xmul 13153 df-ioo 13387 df-ioc 13388 df-ico 13389 df-icc 13390 df-fz 13544 df-fzo 13691 df-fl 13828 df-mod 13906 df-seq 14039 df-exp 14099 df-fac 14309 df-bc 14338 df-hash 14366 df-shft 15102 df-cj 15134 df-re 15135 df-im 15136 df-sqrt 15270 df-abs 15271 df-limsup 15503 df-clim 15520 df-rlim 15521 df-sum 15719 df-ef 16099 df-sin 16101 df-cos 16102 df-pi 16104 df-struct 17180 df-sets 17197 df-slot 17215 df-ndx 17227 df-base 17245 df-ress 17274 df-plusg 17310 df-mulr 17311 df-starv 17312 df-sca 17313 df-vsca 17314 df-ip 17315 df-tset 17316 df-ple 17317 df-ds 17319 df-unif 17320 df-hom 17321 df-cco 17322 df-rest 17468 df-topn 17469 df-0g 17487 df-gsum 17488 df-topgen 17489 df-pt 17490 df-prds 17493 df-xrs 17548 df-qtop 17553 df-imas 17554 df-xps 17556 df-mre 17630 df-mrc 17631 df-acs 17633 df-mgm 18665 df-sgrp 18744 df-mnd 18760 df-submnd 18809 df-mulg 19098 df-cntz 19347 df-cmn 19814 df-psmet 21373 df-xmet 21374 df-met 21375 df-bl 21376 df-mopn 21377 df-fbas 21378 df-fg 21379 df-cnfld 21382 df-top 22915 df-topon 22932 df-topsp 22954 df-bases 22968 df-cld 23042 df-ntr 23043 df-cls 23044 df-nei 23121 df-lp 23159 df-perf 23160 df-cn 23250 df-cnp 23251 df-haus 23338 df-tx 23585 df-hmeo 23778 df-fil 23869 df-fm 23961 df-flim 23962 df-flf 23963 df-xms 24345 df-ms 24346 df-tms 24347 df-cncf 24917 df-limc 25915 df-dv 25916 df-log 26612 df-cxp 26613 |
This theorem is referenced by: cxplead 26777 |
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