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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sticksstones13 | Structured version Visualization version GIF version | ||
| Description: Establish bijective mapping between strictly monotone functions and functions that sum to a fixed non-negative integer. (Contributed by metakunt, 6-Oct-2024.) |
| Ref | Expression |
|---|---|
| sticksstones13.1 | ⊢ (𝜑 → 𝑁 ∈ ℕ0) |
| sticksstones13.2 | ⊢ (𝜑 → 𝐾 ∈ ℕ0) |
| sticksstones13.3 | ⊢ 𝐹 = (𝑎 ∈ 𝐴 ↦ (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙)))) |
| sticksstones13.4 | ⊢ 𝐺 = (𝑏 ∈ 𝐵 ↦ if(𝐾 = 0, {〈1, 𝑁〉}, (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1)))))) |
| sticksstones13.5 | ⊢ 𝐴 = {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧ Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)} |
| sticksstones13.6 | ⊢ 𝐵 = {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...(𝑁 + 𝐾)) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} |
| Ref | Expression |
|---|---|
| sticksstones13 | ⊢ (𝜑 → 𝐹:𝐴–1-1-onto→𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sticksstones13.1 | . . . 4 ⊢ (𝜑 → 𝑁 ∈ ℕ0) | |
| 2 | 1 | adantr 480 | . . 3 ⊢ ((𝜑 ∧ 𝐾 = 0) → 𝑁 ∈ ℕ0) |
| 3 | simpr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐾 = 0) → 𝐾 = 0) | |
| 4 | sticksstones13.3 | . . 3 ⊢ 𝐹 = (𝑎 ∈ 𝐴 ↦ (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙)))) | |
| 5 | sticksstones13.4 | . . 3 ⊢ 𝐺 = (𝑏 ∈ 𝐵 ↦ if(𝐾 = 0, {〈1, 𝑁〉}, (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1)))))) | |
| 6 | sticksstones13.5 | . . 3 ⊢ 𝐴 = {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧ Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)} | |
| 7 | sticksstones13.6 | . . 3 ⊢ 𝐵 = {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...(𝑁 + 𝐾)) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} | |
| 8 | 2, 3, 4, 5, 6, 7 | sticksstones11 42595 | . 2 ⊢ ((𝜑 ∧ 𝐾 = 0) → 𝐹:𝐴–1-1-onto→𝐵) |
| 9 | 1 | adantr 480 | . . 3 ⊢ ((𝜑 ∧ 𝐾 ∈ ℕ) → 𝑁 ∈ ℕ0) |
| 10 | simpr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐾 ∈ ℕ) → 𝐾 ∈ ℕ) | |
| 11 | 9, 10, 4, 5, 6, 7 | sticksstones12 42597 | . 2 ⊢ ((𝜑 ∧ 𝐾 ∈ ℕ) → 𝐹:𝐴–1-1-onto→𝐵) |
| 12 | sticksstones13.2 | . . 3 ⊢ (𝜑 → 𝐾 ∈ ℕ0) | |
| 13 | elnn0 12439 | . . . . 5 ⊢ (𝐾 ∈ ℕ0 ↔ (𝐾 ∈ ℕ ∨ 𝐾 = 0)) | |
| 14 | 13 | biimpi 216 | . . . 4 ⊢ (𝐾 ∈ ℕ0 → (𝐾 ∈ ℕ ∨ 𝐾 = 0)) |
| 15 | 14 | orcomd 872 | . . 3 ⊢ (𝐾 ∈ ℕ0 → (𝐾 = 0 ∨ 𝐾 ∈ ℕ)) |
| 16 | 12, 15 | syl 17 | . 2 ⊢ (𝜑 → (𝐾 = 0 ∨ 𝐾 ∈ ℕ)) |
| 17 | 8, 11, 16 | mpjaodan 961 | 1 ⊢ (𝜑 → 𝐹:𝐴–1-1-onto→𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∨ wo 848 = wceq 1542 ∈ wcel 2114 {cab 2715 ∀wral 3052 ifcif 4467 {csn 4568 〈cop 4574 class class class wbr 5086 ↦ cmpt 5167 ⟶wf 6495 –1-1-onto→wf1o 6498 ‘cfv 6499 (class class class)co 7367 0cc0 11038 1c1 11039 + caddc 11041 < clt 11179 − cmin 11377 ℕcn 12174 ℕ0cn0 12437 ...cfz 13461 Σcsu 15648 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5308 ax-pr 5376 ax-un 7689 ax-inf2 9562 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 ax-pre-sup 11116 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-se 5585 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6266 df-ord 6327 df-on 6328 df-lim 6329 df-suc 6330 df-iota 6455 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-fv 6507 df-isom 6508 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-1o 8405 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-fin 8897 df-sup 9355 df-oi 9425 df-card 9863 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-3 12245 df-n0 12438 df-z 12525 df-uz 12789 df-rp 12943 df-ico 13304 df-fz 13462 df-fzo 13609 df-seq 13964 df-exp 14024 df-hash 14293 df-cj 15061 df-re 15062 df-im 15063 df-sqrt 15197 df-abs 15198 df-clim 15450 df-sum 15649 |
| This theorem is referenced by: sticksstones14 42599 |
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