| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > evthf | Structured version Visualization version GIF version | ||
| Description: A version of evth 24912 using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Glauco Siliprandi, 20-Apr-2017.) |
| Ref | Expression |
|---|---|
| evthf.1 | ⊢ Ⅎ𝑥𝐹 |
| evthf.2 | ⊢ Ⅎ𝑦𝐹 |
| evthf.3 | ⊢ Ⅎ𝑥𝑋 |
| evthf.4 | ⊢ Ⅎ𝑦𝑋 |
| evthf.5 | ⊢ Ⅎ𝑥𝜑 |
| evthf.6 | ⊢ Ⅎ𝑦𝜑 |
| evthf.7 | ⊢ 𝑋 = ∪ 𝐽 |
| evthf.8 | ⊢ 𝐾 = (topGen‘ran (,)) |
| evthf.9 | ⊢ (𝜑 → 𝐽 ∈ Comp) |
| evthf.10 | ⊢ (𝜑 → 𝐹 ∈ (𝐽 Cn 𝐾)) |
| evthf.11 | ⊢ (𝜑 → 𝑋 ≠ ∅) |
| Ref | Expression |
|---|---|
| evthf | ⊢ (𝜑 → ∃𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | evthf.7 | . . 3 ⊢ 𝑋 = ∪ 𝐽 | |
| 2 | evthf.8 | . . 3 ⊢ 𝐾 = (topGen‘ran (,)) | |
| 3 | evthf.9 | . . 3 ⊢ (𝜑 → 𝐽 ∈ Comp) | |
| 4 | evthf.10 | . . 3 ⊢ (𝜑 → 𝐹 ∈ (𝐽 Cn 𝐾)) | |
| 5 | evthf.11 | . . 3 ⊢ (𝜑 → 𝑋 ≠ ∅) | |
| 6 | 1, 2, 3, 4, 5 | evth 24912 | . 2 ⊢ (𝜑 → ∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎)) |
| 7 | nfcv 2896 | . . . . 5 ⊢ Ⅎ𝑏𝑋 | |
| 8 | evthf.4 | . . . . 5 ⊢ Ⅎ𝑦𝑋 | |
| 9 | evthf.2 | . . . . . . 7 ⊢ Ⅎ𝑦𝐹 | |
| 10 | nfcv 2896 | . . . . . . 7 ⊢ Ⅎ𝑦𝑏 | |
| 11 | 9, 10 | nffv 6842 | . . . . . 6 ⊢ Ⅎ𝑦(𝐹‘𝑏) |
| 12 | nfcv 2896 | . . . . . 6 ⊢ Ⅎ𝑦 ≤ | |
| 13 | nfcv 2896 | . . . . . . 7 ⊢ Ⅎ𝑦𝑎 | |
| 14 | 9, 13 | nffv 6842 | . . . . . 6 ⊢ Ⅎ𝑦(𝐹‘𝑎) |
| 15 | 11, 12, 14 | nfbr 5143 | . . . . 5 ⊢ Ⅎ𝑦(𝐹‘𝑏) ≤ (𝐹‘𝑎) |
| 16 | nfv 1915 | . . . . 5 ⊢ Ⅎ𝑏(𝐹‘𝑦) ≤ (𝐹‘𝑎) | |
| 17 | fveq2 6832 | . . . . . 6 ⊢ (𝑏 = 𝑦 → (𝐹‘𝑏) = (𝐹‘𝑦)) | |
| 18 | 17 | breq1d 5106 | . . . . 5 ⊢ (𝑏 = 𝑦 → ((𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ (𝐹‘𝑦) ≤ (𝐹‘𝑎))) |
| 19 | 7, 8, 15, 16, 18 | cbvralfw 3274 | . . . 4 ⊢ (∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎)) |
| 20 | 19 | rexbii 3081 | . . 3 ⊢ (∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∃𝑎 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎)) |
| 21 | nfcv 2896 | . . . 4 ⊢ Ⅎ𝑎𝑋 | |
| 22 | evthf.3 | . . . 4 ⊢ Ⅎ𝑥𝑋 | |
| 23 | evthf.1 | . . . . . . 7 ⊢ Ⅎ𝑥𝐹 | |
| 24 | nfcv 2896 | . . . . . . 7 ⊢ Ⅎ𝑥𝑦 | |
| 25 | 23, 24 | nffv 6842 | . . . . . 6 ⊢ Ⅎ𝑥(𝐹‘𝑦) |
| 26 | nfcv 2896 | . . . . . 6 ⊢ Ⅎ𝑥 ≤ | |
| 27 | nfcv 2896 | . . . . . . 7 ⊢ Ⅎ𝑥𝑎 | |
| 28 | 23, 27 | nffv 6842 | . . . . . 6 ⊢ Ⅎ𝑥(𝐹‘𝑎) |
| 29 | 25, 26, 28 | nfbr 5143 | . . . . 5 ⊢ Ⅎ𝑥(𝐹‘𝑦) ≤ (𝐹‘𝑎) |
| 30 | 22, 29 | nfralw 3281 | . . . 4 ⊢ Ⅎ𝑥∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎) |
| 31 | nfv 1915 | . . . 4 ⊢ Ⅎ𝑎∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥) | |
| 32 | fveq2 6832 | . . . . . 6 ⊢ (𝑎 = 𝑥 → (𝐹‘𝑎) = (𝐹‘𝑥)) | |
| 33 | 32 | breq2d 5108 | . . . . 5 ⊢ (𝑎 = 𝑥 → ((𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ (𝐹‘𝑦) ≤ (𝐹‘𝑥))) |
| 34 | 33 | ralbidv 3157 | . . . 4 ⊢ (𝑎 = 𝑥 → (∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥))) |
| 35 | 21, 22, 30, 31, 34 | cbvrexfw 3275 | . . 3 ⊢ (∃𝑎 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ ∃𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥)) |
| 36 | 20, 35 | bitri 275 | . 2 ⊢ (∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∃𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥)) |
| 37 | 6, 36 | sylib 218 | 1 ⊢ (𝜑 → ∃𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 Ⅎwnf 1784 ∈ wcel 2113 Ⅎwnfc 2881 ≠ wne 2930 ∀wral 3049 ∃wrex 3058 ∅c0 4283 ∪ cuni 4861 class class class wbr 5096 ran crn 5623 ‘cfv 6490 (class class class)co 7356 ≤ cle 11165 (,)cioo 13259 topGenctg 17355 Cn ccn 23166 Compccmp 23328 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2706 ax-rep 5222 ax-sep 5239 ax-nul 5249 ax-pow 5308 ax-pr 5375 ax-un 7678 ax-cnex 11080 ax-resscn 11081 ax-1cn 11082 ax-icn 11083 ax-addcl 11084 ax-addrcl 11085 ax-mulcl 11086 ax-mulrcl 11087 ax-mulcom 11088 ax-addass 11089 ax-mulass 11090 ax-distr 11091 ax-i2m1 11092 ax-1ne0 11093 ax-1rid 11094 ax-rnegex 11095 ax-rrecex 11096 ax-cnre 11097 ax-pre-lttri 11098 ax-pre-lttrn 11099 ax-pre-ltadd 11100 ax-pre-mulgt0 11101 ax-pre-sup 11102 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2809 df-nfc 2883 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3059 df-rmo 3348 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4579 df-pr 4581 df-tp 4583 df-op 4585 df-uni 4862 df-int 4901 df-iun 4946 df-iin 4947 df-br 5097 df-opab 5159 df-mpt 5178 df-tr 5204 df-id 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-se 5576 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-isom 6499 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-of 7620 df-om 7807 df-1st 7931 df-2nd 7932 df-supp 8101 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-1o 8395 df-2o 8396 df-er 8633 df-map 8763 df-ixp 8834 df-en 8882 df-dom 8883 df-sdom 8884 df-fin 8885 df-fsupp 9263 df-fi 9312 df-sup 9343 df-inf 9344 df-oi 9413 df-card 9849 df-pnf 11166 df-mnf 11167 df-xr 11168 df-ltxr 11169 df-le 11170 df-sub 11364 df-neg 11365 df-div 11793 df-nn 12144 df-2 12206 df-3 12207 df-4 12208 df-5 12209 df-6 12210 df-7 12211 df-8 12212 df-9 12213 df-n0 12400 df-z 12487 df-dec 12606 df-uz 12750 df-q 12860 df-rp 12904 df-xneg 13024 df-xadd 13025 df-xmul 13026 df-ioo 13263 df-icc 13266 df-fz 13422 df-fzo 13569 df-seq 13923 df-exp 13983 df-hash 14252 df-cj 15020 df-re 15021 df-im 15022 df-sqrt 15156 df-abs 15157 df-struct 17072 df-sets 17089 df-slot 17107 df-ndx 17119 df-base 17135 df-ress 17156 df-plusg 17188 df-mulr 17189 df-starv 17190 df-sca 17191 df-vsca 17192 df-ip 17193 df-tset 17194 df-ple 17195 df-ds 17197 df-unif 17198 df-hom 17199 df-cco 17200 df-rest 17340 df-topn 17341 df-0g 17359 df-gsum 17360 df-topgen 17361 df-pt 17362 df-prds 17365 df-xrs 17421 df-qtop 17426 df-imas 17427 df-xps 17429 df-mre 17503 df-mrc 17504 df-acs 17506 df-mgm 18563 df-sgrp 18642 df-mnd 18658 df-submnd 18707 df-mulg 18996 df-cntz 19244 df-cmn 19709 df-psmet 21299 df-xmet 21300 df-met 21301 df-bl 21302 df-mopn 21303 df-cnfld 21308 df-top 22836 df-topon 22853 df-topsp 22875 df-bases 22888 df-cn 23169 df-cnp 23170 df-cmp 23329 df-tx 23504 df-hmeo 23697 df-xms 24262 df-ms 24263 df-tms 24264 |
| This theorem is referenced by: rfcnnnub 45223 |
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