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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 1212 | . . 3 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 𝐵 ≤ 𝐶) | |
| 2 | simpl1l 1243 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 𝐴 ∈ ℝ) | |
| 3 | simpr 490 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → 1 < 𝐴) | |
| 4 | simpl2 1211 | . . . 4 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ)) | |
| 5 | cxple 26889 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 1 < 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ)) → (𝐵 ≤ 𝐶 ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) | |
| 6 | 2, 3, 4, 5 | syl21anc 851 | . . 3 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐵 ≤ 𝐶 ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
| 7 | 1, 6 | mpbid 235 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 < 𝐴) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
| 8 | 1le1 11853 | . . . . 5 ⊢ 1 ≤ 1 | |
| 9 | simp2l 1218 | . . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐵 ∈ ℝ) | |
| 10 | 9 | recnd 11248 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐵 ∈ ℂ) |
| 11 | 1cxp 26866 | . . . . . . 7 ⊢ (𝐵 ∈ ℂ → (1↑𝑐𝐵) = 1) | |
| 12 | 10, 11 | syl 18 | . . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1↑𝑐𝐵) = 1) |
| 13 | simp2r 1219 | . . . . . . . 8 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐶 ∈ ℝ) | |
| 14 | 13 | recnd 11248 | . . . . . . 7 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → 𝐶 ∈ ℂ) |
| 15 | 1cxp 26866 | . . . . . . 7 ⊢ (𝐶 ∈ ℂ → (1↑𝑐𝐶) = 1) | |
| 16 | 14, 15 | syl 18 | . . . . . 6 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1↑𝑐𝐶) = 1) |
| 17 | 12, 16 | breq12d 5124 | . . . . 5 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → ((1↑𝑐𝐵) ≤ (1↑𝑐𝐶) ↔ 1 ≤ 1)) |
| 18 | 8, 17 | mpbiri 261 | . . . 4 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1↑𝑐𝐵) ≤ (1↑𝑐𝐶)) |
| 19 | oveq1 7423 | . . . . 5 ⊢ (1 = 𝐴 → (1↑𝑐𝐵) = (𝐴↑𝑐𝐵)) | |
| 20 | oveq1 7423 | . . . . 5 ⊢ (1 = 𝐴 → (1↑𝑐𝐶) = (𝐴↑𝑐𝐶)) | |
| 21 | 19, 20 | breq12d 5124 | . . . 4 ⊢ (1 = 𝐴 → ((1↑𝑐𝐵) ≤ (1↑𝑐𝐶) ↔ (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
| 22 | 18, 21 | syl5ibcom 248 | . . 3 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1 = 𝐴 → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶))) |
| 23 | 22 | imp 412 | . 2 ⊢ ((((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) ∧ 1 = 𝐴) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
| 24 | 1re 11219 | . . . . 5 ⊢ 1 ∈ ℝ | |
| 25 | leloe 11307 | . . . . 5 ⊢ ((1 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (1 ≤ 𝐴 ↔ (1 < 𝐴 ∨ 1 = 𝐴))) | |
| 26 | 24, 25 | mpan 703 | . . . 4 ⊢ (𝐴 ∈ ℝ → (1 ≤ 𝐴 ↔ (1 < 𝐴 ∨ 1 = 𝐴))) |
| 27 | 26 | biimpa 482 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) → (1 < 𝐴 ∨ 1 = 𝐴)) |
| 28 | 27 | 3ad2ant1 1151 | . 2 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (1 < 𝐴 ∨ 1 = 𝐴)) |
| 29 | 7, 23, 28 | mpjaodan 973 | 1 ⊢ (((𝐴 ∈ ℝ ∧ 1 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) ∧ 𝐵 ≤ 𝐶) → (𝐴↑𝑐𝐵) ≤ (𝐴↑𝑐𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 ∨ wo 861 ∧ w3a 1103 = wceq 1570 ∈ wcel 2146 class class class wbr 5111 (class class class)co 7416 ℂcc 11109 ℝcr 11110 1c1 11112 < clt 11254 ≤ cle 11255 ↑𝑐ccxp 26749 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7738 ax-inf2 9613 ax-cnex 11167 ax-resscn 11168 ax-1cn 11169 ax-icn 11170 ax-addcl 11171 ax-addrcl 11172 ax-mulcl 11173 ax-mulrcl 11174 ax-mulcom 11175 ax-addass 11176 ax-mulass 11177 ax-distr 11178 ax-i2m1 11179 ax-1ne0 11180 ax-1rid 11181 ax-rnegex 11182 ax-rrecex 11183 ax-cnre 11184 ax-pre-lttri 11185 ax-pre-lttrn 11186 ax-pre-ltadd 11187 ax-pre-mulgt0 11188 ax-pre-sup 11189 ax-addf 11190 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-iin 4961 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-se 5617 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-of 7680 df-om 7865 df-1st 7988 df-2nd 7989 df-supp 8159 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-2o 8456 df-er 8696 df-map 8828 df-pm 8829 df-ixp 8898 df-en 8946 df-dom 8947 df-sdom 8948 df-fin 8949 df-fsupp 9325 df-fi 9374 df-sup 9405 df-inf 9406 df-oi 9475 df-card 9937 df-pnf 11256 df-mnf 11257 df-xr 11258 df-ltxr 11259 df-le 11260 df-sub 11454 df-neg 11455 df-div 11883 df-nn 12245 df-2 12314 df-3 12315 df-4 12316 df-5 12317 df-6 12318 df-7 12319 df-8 12320 df-9 12321 df-n0 12516 df-z 12603 df-dec 12723 df-uz 12874 df-q 12984 df-rp 13028 df-xneg 13148 df-xadd 13149 df-xmul 13150 df-ioo 13387 df-ioc 13388 df-ico 13389 df-icc 13390 df-fz 13547 df-fzo 13695 df-fl 13838 df-mod 13916 df-seq 14051 df-exp 14111 df-fac 14323 df-bc 14352 df-hash 14380 df-shft 15123 df-cj 15169 df-re 15170 df-im 15171 df-sqrt 15305 df-abs 15306 df-limsup 15541 df-clim 15558 df-rlim 15559 df-sum 15757 df-ef 16138 df-sin 16140 df-cos 16141 df-pi 16143 df-struct 17224 df-sets 17241 df-slot 17259 df-ndx 17271 df-base 17287 df-ress 17308 df-plusg 17340 df-mulr 17341 df-starv 17342 df-sca 17343 df-vsca 17344 df-ip 17345 df-tset 17346 df-ple 17347 df-ds 17349 df-unif 17350 df-hom 17351 df-cco 17352 df-rest 17492 df-topn 17493 df-0g 17511 df-gsum 17512 df-topgen 17513 df-pt 17514 df-prds 17517 df-xrs 17573 df-qtop 17578 df-imas 17579 df-xps 17581 df-mre 17655 df-mrc 17656 df-acs 17658 df-mgm 18715 df-sgrp 18798 df-mnd 18814 df-submnd 18865 df-mulg 19157 df-cntz 19410 df-cmn 19875 df-psmet 21543 df-xmet 21544 df-met 21545 df-bl 21546 df-mopn 21547 df-fbas 21548 df-fg 21549 df-cnfld 21552 df-top 23080 df-topon 23097 df-topsp 23119 df-bases 23132 df-cld 23205 df-ntr 23206 df-cls 23207 df-nei 23284 df-lp 23322 df-perf 23323 df-cn 23413 df-cnp 23414 df-haus 23501 df-tx 23748 df-hmeo 23941 df-fil 24032 df-fm 24124 df-flim 24125 df-flf 24126 df-xms 24506 df-ms 24507 df-tms 24508 df-cncf 25066 df-limc 26054 df-dv 26055 df-log 26750 df-cxp 26751 |
| This theorem is used by: cxplead 26915 |
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