| 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 25280 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 25280 | . 2 ⊢ (𝜑 → ∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎)) |
| 7 | nfcv 2923 | . . . . 5 ⊢ Ⅎ𝑏𝑋 | |
| 8 | evthf.4 | . . . . 5 ⊢ Ⅎ𝑦𝑋 | |
| 9 | evthf.2 | . . . . . . 7 ⊢ Ⅎ𝑦𝐹 | |
| 10 | nfcv 2923 | . . . . . . 7 ⊢ Ⅎ𝑦𝑏 | |
| 11 | 9, 10 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑦(𝐹‘𝑏) |
| 12 | nfcv 2923 | . . . . . 6 ⊢ Ⅎ𝑦 ≤ | |
| 13 | nfcv 2923 | . . . . . . 7 ⊢ Ⅎ𝑦𝑎 | |
| 14 | 9, 13 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑦(𝐹‘𝑎) |
| 15 | 11, 12, 14 | nfbr 5152 | . . . . 5 ⊢ Ⅎ𝑦(𝐹‘𝑏) ≤ (𝐹‘𝑎) |
| 16 | nfv 1947 | . . . . 5 ⊢ Ⅎ𝑏(𝐹‘𝑦) ≤ (𝐹‘𝑎) | |
| 17 | fveq2 6885 | . . . . . 6 ⊢ (𝑏 = 𝑦 → (𝐹‘𝑏) = (𝐹‘𝑦)) | |
| 18 | 17 | breq1d 5113 | . . . . 5 ⊢ (𝑏 = 𝑦 → ((𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ (𝐹‘𝑦) ≤ (𝐹‘𝑎))) |
| 19 | 7, 8, 15, 16, 18 | cbvralfw 3303 | . . . 4 ⊢ (∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎)) |
| 20 | 19 | rexbii 3110 | . . 3 ⊢ (∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∃𝑎 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎)) |
| 21 | nfcv 2923 | . . . 4 ⊢ Ⅎ𝑎𝑋 | |
| 22 | evthf.3 | . . . 4 ⊢ Ⅎ𝑥𝑋 | |
| 23 | evthf.1 | . . . . . . 7 ⊢ Ⅎ𝑥𝐹 | |
| 24 | nfcv 2923 | . . . . . . 7 ⊢ Ⅎ𝑥𝑦 | |
| 25 | 23, 24 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑥(𝐹‘𝑦) |
| 26 | nfcv 2923 | . . . . . 6 ⊢ Ⅎ𝑥 ≤ | |
| 27 | nfcv 2923 | . . . . . . 7 ⊢ Ⅎ𝑥𝑎 | |
| 28 | 23, 27 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑥(𝐹‘𝑎) |
| 29 | 25, 26, 28 | nfbr 5152 | . . . . 5 ⊢ Ⅎ𝑥(𝐹‘𝑦) ≤ (𝐹‘𝑎) |
| 30 | 22, 29 | nfralw 3310 | . . . 4 ⊢ Ⅎ𝑥∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎) |
| 31 | nfv 1947 | . . . 4 ⊢ Ⅎ𝑎∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥) | |
| 32 | fveq2 6885 | . . . . . 6 ⊢ (𝑎 = 𝑥 → (𝐹‘𝑎) = (𝐹‘𝑥)) | |
| 33 | 32 | breq2d 5115 | . . . . 5 ⊢ (𝑎 = 𝑥 → ((𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ (𝐹‘𝑦) ≤ (𝐹‘𝑥))) |
| 34 | 33 | ralbidv 3186 | . . . 4 ⊢ (𝑎 = 𝑥 → (∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥))) |
| 35 | 21, 22, 30, 31, 34 | cbvrexfw 3304 | . . 3 ⊢ (∃𝑎 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ ∃𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥)) |
| 36 | 20, 35 | bitri 278 | . 2 ⊢ (∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∃𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥)) |
| 37 | 6, 36 | sylib 221 | 1 ⊢ (𝜑 → ∃𝑥 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 Ⅎwnf 1816 ∈ wcel 2145 Ⅎwnfc 2908 ≠ wne 2956 ∀wral 3077 ∃wrex 3087 ∅c0 4279 ∪ cuni 4867 class class class wbr 5103 ran crn 5652 ‘cfv 6538 (class class class)co 7420 ≤ cle 11344 (,)cioo 13476 topGenctg 17608 Cn ccn 23542 Compccmp 23704 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 ax-pre-sup 11278 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-iin 4954 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-isom 6547 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-of 7693 df-om 7878 df-1st 8001 df-2nd 8002 df-supp 8178 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-1o 8476 df-2o 8477 df-er 8717 df-map 8849 df-ixp 8926 df-en 8974 df-dom 8975 df-sdom 8976 df-fin 8977 df-fsupp 9354 df-fi 9403 df-sup 9434 df-inf 9435 df-oi 9504 df-card 10020 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-div 11974 df-nn 12336 df-2 12405 df-3 12406 df-4 12407 df-5 12408 df-6 12409 df-7 12410 df-8 12411 df-9 12412 df-n0 12607 df-z 12694 df-dec 12815 df-uz 12966 df-q 13076 df-rp 13121 df-xneg 13241 df-xadd 13242 df-xmul 13243 df-ioo 13480 df-icc 13483 df-fz 13640 df-fzo 13789 df-seq 14145 df-exp 14205 df-hash 14475 df-cj 15266 df-re 15267 df-im 15268 df-sqrt 15402 df-abs 15403 df-struct 17325 df-sets 17342 df-slot 17360 df-ndx 17372 df-base 17388 df-ress 17409 df-plusg 17441 df-mulr 17442 df-starv 17443 df-sca 17444 df-vsca 17445 df-ip 17446 df-tset 17447 df-ple 17448 df-ds 17450 df-unif 17451 df-hom 17452 df-cco 17453 df-rest 17593 df-topn 17594 df-0g 17612 df-gsum 17613 df-topgen 17614 df-pt 17615 df-prds 17618 df-xrs 17674 df-qtop 17679 df-imas 17680 df-xps 17682 df-mre 17756 df-mrc 17757 df-acs 17759 df-mgm 18816 df-sgrp 18908 df-mnd 18924 df-submnd 18979 df-mulg 19278 df-cntz 19531 df-cmn 19996 df-psmet 21670 df-xmet 21671 df-met 21672 df-bl 21673 df-mopn 21674 df-cnfld 21679 df-top 23212 df-topon 23229 df-topsp 23251 df-bases 23264 df-cn 23545 df-cnp 23546 df-cmp 23705 df-tx 23881 df-hmeo 24074 df-xms 24639 df-ms 24640 df-tms 24641 |
| This theorem is used by: rfcnnnub 46052 |
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