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| Mirrors > Home > MPE Home > Th. List > uzsplit | Structured version Visualization version GIF version | ||
| Description: Express an upper integer set as the disjoint (see uzdisj 13627) union of the first 𝑁 values and the rest. (Contributed by Mario Carneiro, 24-Apr-2014.) |
| Ref | Expression |
|---|---|
| uzsplit | ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (ℤ≥‘𝑀) = ((𝑀...(𝑁 − 1)) ∪ (ℤ≥‘𝑁))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eluzelre 12874 | . . . . . . . 8 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ ℝ) | |
| 2 | eluzelre 12874 | . . . . . . . 8 ⊢ (𝑘 ∈ (ℤ≥‘𝑀) → 𝑘 ∈ ℝ) | |
| 3 | lelttric 11318 | . . . . . . . 8 ⊢ ((𝑁 ∈ ℝ ∧ 𝑘 ∈ ℝ) → (𝑁 ≤ 𝑘 ∨ 𝑘 < 𝑁)) | |
| 4 | 1, 2, 3 | syl2an 607 | . . . . . . 7 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝑁 ≤ 𝑘 ∨ 𝑘 < 𝑁)) |
| 5 | eluzelz 12873 | . . . . . . . . 9 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → 𝑁 ∈ ℤ) | |
| 6 | eluzelz 12873 | . . . . . . . . 9 ⊢ (𝑘 ∈ (ℤ≥‘𝑀) → 𝑘 ∈ ℤ) | |
| 7 | eluz 12877 | . . . . . . . . 9 ⊢ ((𝑁 ∈ ℤ ∧ 𝑘 ∈ ℤ) → (𝑘 ∈ (ℤ≥‘𝑁) ↔ 𝑁 ≤ 𝑘)) | |
| 8 | 5, 6, 7 | syl2an 607 | . . . . . . . 8 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝑘 ∈ (ℤ≥‘𝑁) ↔ 𝑁 ≤ 𝑘)) |
| 9 | eluzle 12876 | . . . . . . . . . . 11 ⊢ (𝑘 ∈ (ℤ≥‘𝑀) → 𝑀 ≤ 𝑘) | |
| 10 | 6, 9 | jca 520 | . . . . . . . . . 10 ⊢ (𝑘 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘)) |
| 11 | 10 | adantl 486 | . . . . . . . . 9 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘)) |
| 12 | eluzel2 12868 | . . . . . . . . . 10 ⊢ (𝑘 ∈ (ℤ≥‘𝑀) → 𝑀 ∈ ℤ) | |
| 13 | elfzm11 13625 | . . . . . . . . . . 11 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑘 ∈ (𝑀...(𝑁 − 1)) ↔ (𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘 ∧ 𝑘 < 𝑁))) | |
| 14 | df-3an 1105 | . . . . . . . . . . 11 ⊢ ((𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘 ∧ 𝑘 < 𝑁) ↔ ((𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘) ∧ 𝑘 < 𝑁)) | |
| 15 | 13, 14 | bitrdi 290 | . . . . . . . . . 10 ⊢ ((𝑀 ∈ ℤ ∧ 𝑁 ∈ ℤ) → (𝑘 ∈ (𝑀...(𝑁 − 1)) ↔ ((𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘) ∧ 𝑘 < 𝑁))) |
| 16 | 12, 5, 15 | syl2anr 608 | . . . . . . . . 9 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝑘 ∈ (𝑀...(𝑁 − 1)) ↔ ((𝑘 ∈ ℤ ∧ 𝑀 ≤ 𝑘) ∧ 𝑘 < 𝑁))) |
| 17 | 11, 16 | mpbirand 719 | . . . . . . . 8 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝑘 ∈ (𝑀...(𝑁 − 1)) ↔ 𝑘 < 𝑁)) |
| 18 | 8, 17 | orbi12d 931 | . . . . . . 7 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → ((𝑘 ∈ (ℤ≥‘𝑁) ∨ 𝑘 ∈ (𝑀...(𝑁 − 1))) ↔ (𝑁 ≤ 𝑘 ∨ 𝑘 < 𝑁))) |
| 19 | 4, 18 | mpbird 260 | . . . . . 6 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝑘 ∈ (ℤ≥‘𝑁) ∨ 𝑘 ∈ (𝑀...(𝑁 − 1)))) |
| 20 | 19 | orcomd 884 | . . . . 5 ⊢ ((𝑁 ∈ (ℤ≥‘𝑀) ∧ 𝑘 ∈ (ℤ≥‘𝑀)) → (𝑘 ∈ (𝑀...(𝑁 − 1)) ∨ 𝑘 ∈ (ℤ≥‘𝑁))) |
| 21 | 20 | ex 417 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (𝑀...(𝑁 − 1)) ∨ 𝑘 ∈ (ℤ≥‘𝑁)))) |
| 22 | elfzuz 13549 | . . . . . 6 ⊢ (𝑘 ∈ (𝑀...(𝑁 − 1)) → 𝑘 ∈ (ℤ≥‘𝑀)) | |
| 23 | 22 | a1i 11 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (𝑀...(𝑁 − 1)) → 𝑘 ∈ (ℤ≥‘𝑀))) |
| 24 | uztrn 12881 | . . . . . 6 ⊢ ((𝑘 ∈ (ℤ≥‘𝑁) ∧ 𝑁 ∈ (ℤ≥‘𝑀)) → 𝑘 ∈ (ℤ≥‘𝑀)) | |
| 25 | 24 | expcom 418 | . . . . 5 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (ℤ≥‘𝑁) → 𝑘 ∈ (ℤ≥‘𝑀))) |
| 26 | 23, 25 | jaod 872 | . . . 4 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → ((𝑘 ∈ (𝑀...(𝑁 − 1)) ∨ 𝑘 ∈ (ℤ≥‘𝑁)) → 𝑘 ∈ (ℤ≥‘𝑀))) |
| 27 | 21, 26 | impbid 215 | . . 3 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (ℤ≥‘𝑀) ↔ (𝑘 ∈ (𝑀...(𝑁 − 1)) ∨ 𝑘 ∈ (ℤ≥‘𝑁)))) |
| 28 | elun 4108 | . . 3 ⊢ (𝑘 ∈ ((𝑀...(𝑁 − 1)) ∪ (ℤ≥‘𝑁)) ↔ (𝑘 ∈ (𝑀...(𝑁 − 1)) ∨ 𝑘 ∈ (ℤ≥‘𝑁))) | |
| 29 | 27, 28 | bitr4di 292 | . 2 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (𝑘 ∈ (ℤ≥‘𝑀) ↔ 𝑘 ∈ ((𝑀...(𝑁 − 1)) ∪ (ℤ≥‘𝑁)))) |
| 30 | 29 | eqrdv 2761 | 1 ⊢ (𝑁 ∈ (ℤ≥‘𝑀) → (ℤ≥‘𝑀) = ((𝑀...(𝑁 − 1)) ∪ (ℤ≥‘𝑁))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 ∨ wo 860 ∧ w3a 1103 = wceq 1570 ∈ wcel 2143 ∪ cun 3904 class class class wbr 5110 ‘cfv 6538 (class class class)co 7412 ℝcr 11100 1c1 11102 < clt 11244 ≤ cle 11245 − cmin 11442 ℤcz 12592 ℤ≥cuz 12863 ...cfz 13536 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 ax-cnex 11157 ax-resscn 11158 ax-1cn 11159 ax-icn 11160 ax-addcl 11161 ax-addrcl 11162 ax-mulcl 11163 ax-mulrcl 11164 ax-mulcom 11165 ax-addass 11166 ax-mulass 11167 ax-distr 11168 ax-i2m1 11169 ax-1ne0 11170 ax-1rid 11171 ax-rnegex 11172 ax-rrecex 11173 ax-cnre 11174 ax-pre-lttri 11175 ax-pre-lttrn 11176 ax-pre-ltadd 11177 ax-pre-mulgt0 11178 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 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 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-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7864 df-1st 7987 df-2nd 7988 df-frecs 8279 df-wrecs 8310 df-recs 8359 df-rdg 8398 df-er 8695 df-en 8945 df-dom 8946 df-sdom 8947 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11444 df-neg 11445 df-nn 12235 df-n0 12506 df-z 12593 df-uz 12864 df-fz 13537 |
| This theorem is referenced by: nn0split 13673 uniioombllem3 25725 uniioombllem4 25726 plyaddlem1 26351 plymullem1 26352 trclfvdecomr 44434 nnsplit 46054 sbgoldbo 48529 aacllem 50578 |
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