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| Mirrors > Home > MPE Home > Th. List > Mathboxes > iblsplitf | Structured version Visualization version GIF version | ||
| Description: A version of iblsplit 46920 using bound-variable hypotheses instead of distinct variable conditions". (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| iblsplitf.X | ⊢ Ⅎ𝑥𝜑 |
| iblsplitf.vol | ⊢ (𝜑 → (vol*‘(𝐴 ∩ 𝐵)) = 0) |
| iblsplitf.u | ⊢ (𝜑 → 𝑈 = (𝐴 ∪ 𝐵)) |
| iblsplitf.c | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝐶 ∈ ℂ) |
| iblsplitf.a | ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐶) ∈ 𝐿1) |
| iblsplitf.b | ⊢ (𝜑 → (𝑥 ∈ 𝐵 ↦ 𝐶) ∈ 𝐿1) |
| Ref | Expression |
|---|---|
| iblsplitf | ⊢ (𝜑 → (𝑥 ∈ 𝑈 ↦ 𝐶) ∈ 𝐿1) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfcv 2923 | . . 3 ⊢ Ⅎ𝑦𝐶 | |
| 2 | nfcsb1v 3871 | . . 3 ⊢ Ⅎ𝑥⦋𝑦 / 𝑥⦌𝐶 | |
| 3 | csbeq1a 3861 | . . 3 ⊢ (𝑥 = 𝑦 → 𝐶 = ⦋𝑦 / 𝑥⦌𝐶) | |
| 4 | 1, 2, 3 | cbvmpt 5207 | . 2 ⊢ (𝑥 ∈ 𝑈 ↦ 𝐶) = (𝑦 ∈ 𝑈 ↦ ⦋𝑦 / 𝑥⦌𝐶) |
| 5 | iblsplitf.vol | . . 3 ⊢ (𝜑 → (vol*‘(𝐴 ∩ 𝐵)) = 0) | |
| 6 | iblsplitf.u | . . 3 ⊢ (𝜑 → 𝑈 = (𝐴 ∪ 𝐵)) | |
| 7 | simpr 490 | . . . 4 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑈) → 𝑦 ∈ 𝑈) | |
| 8 | iblsplitf.X | . . . . . 6 ⊢ Ⅎ𝑥𝜑 | |
| 9 | nfv 1947 | . . . . . 6 ⊢ Ⅎ𝑥 𝑦 ∈ 𝑈 | |
| 10 | 8, 9 | nfan 1932 | . . . . 5 ⊢ Ⅎ𝑥(𝜑 ∧ 𝑦 ∈ 𝑈) |
| 11 | iblsplitf.c | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑈) → 𝐶 ∈ ℂ) | |
| 12 | 11 | adantlr 728 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑦 ∈ 𝑈) ∧ 𝑥 ∈ 𝑈) → 𝐶 ∈ ℂ) |
| 13 | 12 | ex 418 | . . . . 5 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑈) → (𝑥 ∈ 𝑈 → 𝐶 ∈ ℂ)) |
| 14 | 10, 13 | ralrimi 3261 | . . . 4 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑈) → ∀𝑥 ∈ 𝑈 𝐶 ∈ ℂ) |
| 15 | rspcsbela 4396 | . . . 4 ⊢ ((𝑦 ∈ 𝑈 ∧ ∀𝑥 ∈ 𝑈 𝐶 ∈ ℂ) → ⦋𝑦 / 𝑥⦌𝐶 ∈ ℂ) | |
| 16 | 7, 14, 15 | syl2anc 596 | . . 3 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑈) → ⦋𝑦 / 𝑥⦌𝐶 ∈ ℂ) |
| 17 | 3 | equcoms 2053 | . . . . . 6 ⊢ (𝑦 = 𝑥 → 𝐶 = ⦋𝑦 / 𝑥⦌𝐶) |
| 18 | 17 | eqcomd 2767 | . . . . 5 ⊢ (𝑦 = 𝑥 → ⦋𝑦 / 𝑥⦌𝐶 = 𝐶) |
| 19 | 2, 1, 18 | cbvmpt 5207 | . . . 4 ⊢ (𝑦 ∈ 𝐴 ↦ ⦋𝑦 / 𝑥⦌𝐶) = (𝑥 ∈ 𝐴 ↦ 𝐶) |
| 20 | iblsplitf.a | . . . 4 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐶) ∈ 𝐿1) | |
| 21 | 19, 20 | eqeltrid 2865 | . . 3 ⊢ (𝜑 → (𝑦 ∈ 𝐴 ↦ ⦋𝑦 / 𝑥⦌𝐶) ∈ 𝐿1) |
| 22 | 2, 1, 18 | cbvmpt 5207 | . . . 4 ⊢ (𝑦 ∈ 𝐵 ↦ ⦋𝑦 / 𝑥⦌𝐶) = (𝑥 ∈ 𝐵 ↦ 𝐶) |
| 23 | iblsplitf.b | . . . 4 ⊢ (𝜑 → (𝑥 ∈ 𝐵 ↦ 𝐶) ∈ 𝐿1) | |
| 24 | 22, 23 | eqeltrid 2865 | . . 3 ⊢ (𝜑 → (𝑦 ∈ 𝐵 ↦ ⦋𝑦 / 𝑥⦌𝐶) ∈ 𝐿1) |
| 25 | 5, 6, 16, 21, 24 | iblsplit 46920 | . 2 ⊢ (𝜑 → (𝑦 ∈ 𝑈 ↦ ⦋𝑦 / 𝑥⦌𝐶) ∈ 𝐿1) |
| 26 | 4, 25 | eqeltrid 2865 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑈 ↦ 𝐶) ∈ 𝐿1) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 Ⅎwnf 1816 ∈ wcel 2145 ∀wral 3077 ⦋csb 3847 ∪ cun 3897 ∩ cin 3898 ↦ cmpt 5186 ‘cfv 6531 ℂcc 11179 0cc0 11181 vol*covol 25763 𝐿1cibl 25918 |
| 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 7740 ax-inf2 9626 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 ax-pre-sup 11259 ax-addf 11260 |
| 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-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-disj 5071 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 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-isom 6540 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-of 7682 df-ofr 7683 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-1o 8460 df-2o 8461 df-er 8701 df-map 8833 df-pm 8834 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-fi 9387 df-sup 9418 df-inf 9419 df-oi 9488 df-dju 9963 df-card 10001 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-div 11955 df-nn 12317 df-2 12386 df-3 12387 df-n0 12588 df-z 12675 df-uz 12947 df-q 13057 df-rp 13102 df-xneg 13222 df-xadd 13223 df-xmul 13224 df-ioo 13461 df-ico 13463 df-icc 13464 df-fz 13621 df-fzo 13769 df-fl 13912 df-seq 14125 df-exp 14185 df-hash 14455 df-cj 15246 df-re 15247 df-im 15248 df-sqrt 15382 df-abs 15383 df-clim 15635 df-sum 15834 df-rest 17573 df-topgen 17594 df-psmet 21650 df-xmet 21651 df-met 21652 df-bl 21653 df-mopn 21654 df-top 23192 df-topon 23209 df-bases 23244 df-cmp 23685 df-ovol 25765 df-vol 25766 df-mbf 25920 df-itg1 25921 df-itg2 25922 df-ibl 25923 |
| This theorem is used by: iblspltprt 46927 |
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