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Mirrors > Home > MPE Home > Th. List > Mathboxes > sticksstones21 | Structured version Visualization version GIF version |
Description: Lift sticks and stones to arbitrary finite non-empty sets. (Contributed by metakunt, 24-Oct-2024.) |
Ref | Expression |
---|---|
sticksstones21.1 | ⊢ (𝜑 → 𝑁 ∈ ℕ0) |
sticksstones21.2 | ⊢ (𝜑 → 𝑆 ∈ Fin) |
sticksstones21.3 | ⊢ (𝜑 → 𝑆 ≠ ∅) |
sticksstones21.4 | ⊢ 𝐴 = {𝑓 ∣ (𝑓:𝑆⟶ℕ0 ∧ Σ𝑖 ∈ 𝑆 (𝑓‘𝑖) = 𝑁)} |
Ref | Expression |
---|---|
sticksstones21 | ⊢ (𝜑 → (♯‘𝐴) = ((𝑁 + ((♯‘𝑆) − 1))C((♯‘𝑆) − 1))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sticksstones21.1 | . 2 ⊢ (𝜑 → 𝑁 ∈ ℕ0) | |
2 | sticksstones21.2 | . 2 ⊢ (𝜑 → 𝑆 ∈ Fin) | |
3 | sticksstones21.3 | . . 3 ⊢ (𝜑 → 𝑆 ≠ ∅) | |
4 | hashnncl 14009 | . . . 4 ⊢ (𝑆 ∈ Fin → ((♯‘𝑆) ∈ ℕ ↔ 𝑆 ≠ ∅)) | |
5 | 2, 4 | syl 17 | . . 3 ⊢ (𝜑 → ((♯‘𝑆) ∈ ℕ ↔ 𝑆 ≠ ∅)) |
6 | 3, 5 | mpbird 256 | . 2 ⊢ (𝜑 → (♯‘𝑆) ∈ ℕ) |
7 | fveq2 6756 | . . . . . 6 ⊢ (𝑗 = 𝑘 → (𝑔‘𝑗) = (𝑔‘𝑘)) | |
8 | 7 | cbvsumv 15336 | . . . . 5 ⊢ Σ𝑗 ∈ (1...(♯‘𝑆))(𝑔‘𝑗) = Σ𝑘 ∈ (1...(♯‘𝑆))(𝑔‘𝑘) |
9 | 8 | eqeq1i 2743 | . . . 4 ⊢ (Σ𝑗 ∈ (1...(♯‘𝑆))(𝑔‘𝑗) = 𝑁 ↔ Σ𝑘 ∈ (1...(♯‘𝑆))(𝑔‘𝑘) = 𝑁) |
10 | 9 | anbi2i 622 | . . 3 ⊢ ((𝑔:(1...(♯‘𝑆))⟶ℕ0 ∧ Σ𝑗 ∈ (1...(♯‘𝑆))(𝑔‘𝑗) = 𝑁) ↔ (𝑔:(1...(♯‘𝑆))⟶ℕ0 ∧ Σ𝑘 ∈ (1...(♯‘𝑆))(𝑔‘𝑘) = 𝑁)) |
11 | 10 | abbii 2809 | . 2 ⊢ {𝑔 ∣ (𝑔:(1...(♯‘𝑆))⟶ℕ0 ∧ Σ𝑗 ∈ (1...(♯‘𝑆))(𝑔‘𝑗) = 𝑁)} = {𝑔 ∣ (𝑔:(1...(♯‘𝑆))⟶ℕ0 ∧ Σ𝑘 ∈ (1...(♯‘𝑆))(𝑔‘𝑘) = 𝑁)} |
12 | sticksstones21.4 | . . 3 ⊢ 𝐴 = {𝑓 ∣ (𝑓:𝑆⟶ℕ0 ∧ Σ𝑖 ∈ 𝑆 (𝑓‘𝑖) = 𝑁)} | |
13 | fveq2 6756 | . . . . . . 7 ⊢ (𝑖 = 𝑘 → (𝑓‘𝑖) = (𝑓‘𝑘)) | |
14 | 13 | cbvsumv 15336 | . . . . . 6 ⊢ Σ𝑖 ∈ 𝑆 (𝑓‘𝑖) = Σ𝑘 ∈ 𝑆 (𝑓‘𝑘) |
15 | 14 | eqeq1i 2743 | . . . . 5 ⊢ (Σ𝑖 ∈ 𝑆 (𝑓‘𝑖) = 𝑁 ↔ Σ𝑘 ∈ 𝑆 (𝑓‘𝑘) = 𝑁) |
16 | 15 | anbi2i 622 | . . . 4 ⊢ ((𝑓:𝑆⟶ℕ0 ∧ Σ𝑖 ∈ 𝑆 (𝑓‘𝑖) = 𝑁) ↔ (𝑓:𝑆⟶ℕ0 ∧ Σ𝑘 ∈ 𝑆 (𝑓‘𝑘) = 𝑁)) |
17 | 16 | abbii 2809 | . . 3 ⊢ {𝑓 ∣ (𝑓:𝑆⟶ℕ0 ∧ Σ𝑖 ∈ 𝑆 (𝑓‘𝑖) = 𝑁)} = {𝑓 ∣ (𝑓:𝑆⟶ℕ0 ∧ Σ𝑘 ∈ 𝑆 (𝑓‘𝑘) = 𝑁)} |
18 | 12, 17 | eqtri 2766 | . 2 ⊢ 𝐴 = {𝑓 ∣ (𝑓:𝑆⟶ℕ0 ∧ Σ𝑘 ∈ 𝑆 (𝑓‘𝑘) = 𝑁)} |
19 | eqidd 2739 | . 2 ⊢ (𝜑 → (♯‘𝑆) = (♯‘𝑆)) | |
20 | 1, 2, 6, 11, 18, 19 | sticksstones20 40050 | 1 ⊢ (𝜑 → (♯‘𝐴) = ((𝑁 + ((♯‘𝑆) − 1))C((♯‘𝑆) − 1))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 = wceq 1539 ∈ wcel 2108 {cab 2715 ≠ wne 2942 ∅c0 4253 ⟶wf 6414 ‘cfv 6418 (class class class)co 7255 Fincfn 8691 1c1 10803 + caddc 10805 − cmin 11135 ℕcn 11903 ℕ0cn0 12163 ...cfz 13168 Ccbc 13944 ♯chash 13972 Σcsu 15325 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-inf2 9329 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 ax-pre-sup 10880 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-se 5536 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-isom 6427 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-1o 8267 df-oadd 8271 df-er 8456 df-en 8692 df-dom 8693 df-sdom 8694 df-fin 8695 df-sup 9131 df-inf 9132 df-oi 9199 df-dju 9590 df-card 9628 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-nn 11904 df-2 11966 df-3 11967 df-n0 12164 df-z 12250 df-uz 12512 df-rp 12660 df-ico 13014 df-fz 13169 df-fzo 13312 df-seq 13650 df-exp 13711 df-fac 13916 df-bc 13945 df-hash 13973 df-cj 14738 df-re 14739 df-im 14740 df-sqrt 14874 df-abs 14875 df-clim 15125 df-sum 15326 |
This theorem is referenced by: sticksstones22 40052 |
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