| 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 25171 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 25171 | . 2 ⊢ (𝜑 → ∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎)) |
| 7 | nfcv 2927 | . . . . 5 ⊢ Ⅎ𝑏𝑋 | |
| 8 | evthf.4 | . . . . 5 ⊢ Ⅎ𝑦𝑋 | |
| 9 | evthf.2 | . . . . . . 7 ⊢ Ⅎ𝑦𝐹 | |
| 10 | nfcv 2927 | . . . . . . 7 ⊢ Ⅎ𝑦𝑏 | |
| 11 | 9, 10 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑦(𝐹‘𝑏) |
| 12 | nfcv 2927 | . . . . . 6 ⊢ Ⅎ𝑦 ≤ | |
| 13 | nfcv 2927 | . . . . . . 7 ⊢ Ⅎ𝑦𝑎 | |
| 14 | 9, 13 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑦(𝐹‘𝑎) |
| 15 | 11, 12, 14 | nfbr 5160 | . . . . 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 5121 | . . . . 5 ⊢ (𝑏 = 𝑦 → ((𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ (𝐹‘𝑦) ≤ (𝐹‘𝑎))) |
| 19 | 7, 8, 15, 16, 18 | cbvralfw 3307 | . . . 4 ⊢ (∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎)) |
| 20 | 19 | rexbii 3114 | . . 3 ⊢ (∃𝑎 ∈ 𝑋 ∀𝑏 ∈ 𝑋 (𝐹‘𝑏) ≤ (𝐹‘𝑎) ↔ ∃𝑎 ∈ 𝑋 ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎)) |
| 21 | nfcv 2927 | . . . 4 ⊢ Ⅎ𝑎𝑋 | |
| 22 | evthf.3 | . . . 4 ⊢ Ⅎ𝑥𝑋 | |
| 23 | evthf.1 | . . . . . . 7 ⊢ Ⅎ𝑥𝐹 | |
| 24 | nfcv 2927 | . . . . . . 7 ⊢ Ⅎ𝑥𝑦 | |
| 25 | 23, 24 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑥(𝐹‘𝑦) |
| 26 | nfcv 2927 | . . . . . 6 ⊢ Ⅎ𝑥 ≤ | |
| 27 | nfcv 2927 | . . . . . . 7 ⊢ Ⅎ𝑥𝑎 | |
| 28 | 23, 27 | nffv 6895 | . . . . . 6 ⊢ Ⅎ𝑥(𝐹‘𝑎) |
| 29 | 25, 26, 28 | nfbr 5160 | . . . . 5 ⊢ Ⅎ𝑥(𝐹‘𝑦) ≤ (𝐹‘𝑎) |
| 30 | 22, 29 | nfralw 3314 | . . . 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 5123 | . . . . 5 ⊢ (𝑎 = 𝑥 → ((𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ (𝐹‘𝑦) ≤ (𝐹‘𝑥))) |
| 34 | 33 | ralbidv 3190 | . . . 4 ⊢ (𝑎 = 𝑥 → (∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑎) ↔ ∀𝑦 ∈ 𝑋 (𝐹‘𝑦) ≤ (𝐹‘𝑥))) |
| 35 | 21, 22, 30, 31, 34 | cbvrexfw 3308 | . . 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 2146 Ⅎwnfc 2912 ≠ wne 2960 ∀wral 3081 ∃wrex 3091 ∅c0 4286 ∪ cuni 4874 class class class wbr 5111 ran crn 5664 ‘cfv 6540 (class class class)co 7419 ≤ cle 11261 (,)cioo 13390 topGenctg 17514 Cn ccn 23433 Compccmp 23595 |
| 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 7742 ax-cnex 11173 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-addrcl 11178 ax-mulcl 11179 ax-mulrcl 11180 ax-mulcom 11181 ax-addass 11182 ax-mulass 11183 ax-distr 11184 ax-i2m1 11185 ax-1ne0 11186 ax-1rid 11187 ax-rnegex 11188 ax-rrecex 11189 ax-cnre 11190 ax-pre-lttri 11191 ax-pre-lttrn 11192 ax-pre-ltadd 11193 ax-pre-mulgt0 11194 ax-pre-sup 11195 |
| 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 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-of 7684 df-om 7869 df-1st 7992 df-2nd 7993 df-supp 8163 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-1o 8459 df-2o 8460 df-er 8700 df-map 8832 df-ixp 8902 df-en 8950 df-dom 8951 df-sdom 8952 df-fin 8953 df-fsupp 9329 df-fi 9378 df-sup 9409 df-inf 9410 df-oi 9479 df-card 9941 df-pnf 11262 df-mnf 11263 df-xr 11264 df-ltxr 11265 df-le 11266 df-sub 11460 df-neg 11461 df-div 11889 df-nn 12251 df-2 12320 df-3 12321 df-4 12322 df-5 12323 df-6 12324 df-7 12325 df-8 12326 df-9 12327 df-n0 12522 df-z 12609 df-dec 12730 df-uz 12881 df-q 12991 df-rp 13035 df-xneg 13155 df-xadd 13156 df-xmul 13157 df-ioo 13394 df-icc 13397 df-fz 13554 df-fzo 13702 df-seq 14058 df-exp 14118 df-hash 14387 df-cj 15176 df-re 15177 df-im 15178 df-sqrt 15312 df-abs 15313 df-struct 17231 df-sets 17248 df-slot 17266 df-ndx 17278 df-base 17294 df-ress 17315 df-plusg 17347 df-mulr 17348 df-starv 17349 df-sca 17350 df-vsca 17351 df-ip 17352 df-tset 17353 df-ple 17354 df-ds 17356 df-unif 17357 df-hom 17358 df-cco 17359 df-rest 17499 df-topn 17500 df-0g 17518 df-gsum 17519 df-topgen 17520 df-pt 17521 df-prds 17524 df-xrs 17580 df-qtop 17585 df-imas 17586 df-xps 17588 df-mre 17662 df-mrc 17663 df-acs 17665 df-mgm 18722 df-sgrp 18811 df-mnd 18827 df-submnd 18881 df-mulg 19180 df-cntz 19433 df-cmn 19898 df-psmet 21566 df-xmet 21567 df-met 21568 df-bl 21569 df-mopn 21570 df-cnfld 21575 df-top 23103 df-topon 23120 df-topsp 23142 df-bases 23155 df-cn 23436 df-cnp 23437 df-cmp 23596 df-tx 23772 df-hmeo 23965 df-xms 24530 df-ms 24531 df-tms 24532 |
| This theorem is used by: rfcnnnub 45816 |
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