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Theorem sticksstones18 40048
Description: Extend sticks and stones to finite sets, bijective builder. (Contributed by metakunt, 23-Oct-2024.)
Hypotheses
Ref Expression
sticksstones18.1 (𝜑𝑁 ∈ ℕ0)
sticksstones18.2 (𝜑𝐾 ∈ ℕ0)
sticksstones18.3 𝐴 = {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)}
sticksstones18.4 𝐵 = { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)}
sticksstones18.5 (𝜑𝑍:(1...𝐾)–1-1-onto𝑆)
sticksstones18.6 𝐹 = (𝑎𝐴 ↦ (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))))
Assertion
Ref Expression
sticksstones18 (𝜑𝐹:𝐴𝐵)
Distinct variable groups:   𝐴,𝑎,𝑖,𝑥   𝐵,𝑎   𝑔,𝐾,𝑖   𝑔,𝑁   ,𝑁   𝑆,,𝑖,𝑥   ,𝑍,𝑖,𝑥   𝑔,𝑎   ,𝑎   𝜑,𝑎,𝑖,𝑥
Allowed substitution hints:   𝜑(𝑔,)   𝐴(𝑔,)   𝐵(𝑥,𝑔,,𝑖)   𝑆(𝑔,𝑎)   𝐹(𝑥,𝑔,,𝑖,𝑎)   𝐾(𝑥,,𝑎)   𝑁(𝑥,𝑖,𝑎)   𝑍(𝑔,𝑎)

Proof of Theorem sticksstones18
Dummy variable 𝑛 is distinct from all other variables.
StepHypRef Expression
1 sticksstones18.3 . . . . . . . . . . . . . 14 𝐴 = {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)}
21eqimssi 3975 . . . . . . . . . . . . 13 𝐴 ⊆ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)}
32a1i 11 . . . . . . . . . . . 12 (𝜑𝐴 ⊆ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)})
43sseld 3916 . . . . . . . . . . 11 (𝜑 → (𝑎𝐴𝑎 ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)}))
54imp 406 . . . . . . . . . 10 ((𝜑𝑎𝐴) → 𝑎 ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)})
6 vex 3426 . . . . . . . . . . 11 𝑎 ∈ V
7 feq1 6565 . . . . . . . . . . . 12 (𝑔 = 𝑎 → (𝑔:(1...𝐾)⟶ℕ0𝑎:(1...𝐾)⟶ℕ0))
8 simpl 482 . . . . . . . . . . . . . . 15 ((𝑔 = 𝑎𝑖 ∈ (1...𝐾)) → 𝑔 = 𝑎)
98fveq1d 6758 . . . . . . . . . . . . . 14 ((𝑔 = 𝑎𝑖 ∈ (1...𝐾)) → (𝑔𝑖) = (𝑎𝑖))
109sumeq2dv 15343 . . . . . . . . . . . . 13 (𝑔 = 𝑎 → Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = Σ𝑖 ∈ (1...𝐾)(𝑎𝑖))
1110eqeq1d 2740 . . . . . . . . . . . 12 (𝑔 = 𝑎 → (Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁 ↔ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁))
127, 11anbi12d 630 . . . . . . . . . . 11 (𝑔 = 𝑎 → ((𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁) ↔ (𝑎:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁)))
136, 12elab 3602 . . . . . . . . . 10 (𝑎 ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)} ↔ (𝑎:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁))
145, 13sylib 217 . . . . . . . . 9 ((𝜑𝑎𝐴) → (𝑎:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁))
1514simpld 494 . . . . . . . 8 ((𝜑𝑎𝐴) → 𝑎:(1...𝐾)⟶ℕ0)
1615adantr 480 . . . . . . 7 (((𝜑𝑎𝐴) ∧ 𝑥𝑆) → 𝑎:(1...𝐾)⟶ℕ0)
17 sticksstones18.5 . . . . . . . . . . 11 (𝜑𝑍:(1...𝐾)–1-1-onto𝑆)
18 f1ocnv 6712 . . . . . . . . . . 11 (𝑍:(1...𝐾)–1-1-onto𝑆𝑍:𝑆1-1-onto→(1...𝐾))
1917, 18syl 17 . . . . . . . . . 10 (𝜑𝑍:𝑆1-1-onto→(1...𝐾))
20 f1of 6700 . . . . . . . . . 10 (𝑍:𝑆1-1-onto→(1...𝐾) → 𝑍:𝑆⟶(1...𝐾))
2119, 20syl 17 . . . . . . . . 9 (𝜑𝑍:𝑆⟶(1...𝐾))
2221adantr 480 . . . . . . . 8 ((𝜑𝑎𝐴) → 𝑍:𝑆⟶(1...𝐾))
2322ffvelrnda 6943 . . . . . . 7 (((𝜑𝑎𝐴) ∧ 𝑥𝑆) → (𝑍𝑥) ∈ (1...𝐾))
2416, 23ffvelrnd 6944 . . . . . 6 (((𝜑𝑎𝐴) ∧ 𝑥𝑆) → (𝑎‘(𝑍𝑥)) ∈ ℕ0)
2524fmpttd 6971 . . . . 5 ((𝜑𝑎𝐴) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0)
26 eqidd 2739 . . . . . . . 8 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))))
27 simpr 484 . . . . . . . . . 10 ((((𝜑𝑎𝐴) ∧ 𝑖𝑆) ∧ 𝑥 = 𝑖) → 𝑥 = 𝑖)
2827fveq2d 6760 . . . . . . . . 9 ((((𝜑𝑎𝐴) ∧ 𝑖𝑆) ∧ 𝑥 = 𝑖) → (𝑍𝑥) = (𝑍𝑖))
2928fveq2d 6760 . . . . . . . 8 ((((𝜑𝑎𝐴) ∧ 𝑖𝑆) ∧ 𝑥 = 𝑖) → (𝑎‘(𝑍𝑥)) = (𝑎‘(𝑍𝑖)))
30 simpr 484 . . . . . . . 8 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → 𝑖𝑆)
31 fvexd 6771 . . . . . . . 8 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → (𝑎‘(𝑍𝑖)) ∈ V)
3226, 29, 30, 31fvmptd 6864 . . . . . . 7 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = (𝑎‘(𝑍𝑖)))
3332sumeq2dv 15343 . . . . . 6 ((𝜑𝑎𝐴) → Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = Σ𝑖𝑆 (𝑎‘(𝑍𝑖)))
34 fveq2 6756 . . . . . . . . 9 (𝑛 = (𝑍𝑖) → (𝑎𝑛) = (𝑎‘(𝑍𝑖)))
35 fzfid 13621 . . . . . . . . . 10 ((𝜑𝑎𝐴) → (1...𝐾) ∈ Fin)
3617adantr 480 . . . . . . . . . . . 12 ((𝜑𝑎𝐴) → 𝑍:(1...𝐾)–1-1-onto𝑆)
37 f1oenfi 8926 . . . . . . . . . . . 12 (((1...𝐾) ∈ Fin ∧ 𝑍:(1...𝐾)–1-1-onto𝑆) → (1...𝐾) ≈ 𝑆)
3835, 36, 37syl2anc 583 . . . . . . . . . . 11 ((𝜑𝑎𝐴) → (1...𝐾) ≈ 𝑆)
3938ensymd 8746 . . . . . . . . . 10 ((𝜑𝑎𝐴) → 𝑆 ≈ (1...𝐾))
40 enfii 8932 . . . . . . . . . 10 (((1...𝐾) ∈ Fin ∧ 𝑆 ≈ (1...𝐾)) → 𝑆 ∈ Fin)
4135, 39, 40syl2anc 583 . . . . . . . . 9 ((𝜑𝑎𝐴) → 𝑆 ∈ Fin)
4219adantr 480 . . . . . . . . 9 ((𝜑𝑎𝐴) → 𝑍:𝑆1-1-onto→(1...𝐾))
43 eqidd 2739 . . . . . . . . 9 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → (𝑍𝑖) = (𝑍𝑖))
44 nn0sscn 12168 . . . . . . . . . . . 12 0 ⊆ ℂ
4544a1i 11 . . . . . . . . . . 11 ((𝜑𝑎𝐴) → ℕ0 ⊆ ℂ)
46 fss 6601 . . . . . . . . . . 11 ((𝑎:(1...𝐾)⟶ℕ0 ∧ ℕ0 ⊆ ℂ) → 𝑎:(1...𝐾)⟶ℂ)
4715, 45, 46syl2anc 583 . . . . . . . . . 10 ((𝜑𝑎𝐴) → 𝑎:(1...𝐾)⟶ℂ)
4847ffvelrnda 6943 . . . . . . . . 9 (((𝜑𝑎𝐴) ∧ 𝑛 ∈ (1...𝐾)) → (𝑎𝑛) ∈ ℂ)
4934, 41, 42, 43, 48fsumf1o 15363 . . . . . . . 8 ((𝜑𝑎𝐴) → Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = Σ𝑖𝑆 (𝑎‘(𝑍𝑖)))
5049eqcomd 2744 . . . . . . 7 ((𝜑𝑎𝐴) → Σ𝑖𝑆 (𝑎‘(𝑍𝑖)) = Σ𝑛 ∈ (1...𝐾)(𝑎𝑛))
51 fveq2 6756 . . . . . . . . . 10 (𝑛 = 𝑖 → (𝑎𝑛) = (𝑎𝑖))
5251cbvsumv 15336 . . . . . . . . 9 Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = Σ𝑖 ∈ (1...𝐾)(𝑎𝑖)
5352a1i 11 . . . . . . . 8 ((𝜑𝑎𝐴) → Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = Σ𝑖 ∈ (1...𝐾)(𝑎𝑖))
5414simprd 495 . . . . . . . 8 ((𝜑𝑎𝐴) → Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁)
5553, 54eqtrd 2778 . . . . . . 7 ((𝜑𝑎𝐴) → Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = 𝑁)
5650, 55eqtrd 2778 . . . . . 6 ((𝜑𝑎𝐴) → Σ𝑖𝑆 (𝑎‘(𝑍𝑖)) = 𝑁)
5733, 56eqtrd 2778 . . . . 5 ((𝜑𝑎𝐴) → Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁)
5825, 57jca 511 . . . 4 ((𝜑𝑎𝐴) → ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0 ∧ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁))
59 fzfid 13621 . . . . . . . 8 (𝜑 → (1...𝐾) ∈ Fin)
6059adantr 480 . . . . . . 7 ((𝜑𝑎𝐴) → (1...𝐾) ∈ Fin)
6159, 17, 37syl2anc 583 . . . . . . . . 9 (𝜑 → (1...𝐾) ≈ 𝑆)
6261ensymd 8746 . . . . . . . 8 (𝜑𝑆 ≈ (1...𝐾))
6362adantr 480 . . . . . . 7 ((𝜑𝑎𝐴) → 𝑆 ≈ (1...𝐾))
6460, 63, 40syl2anc 583 . . . . . 6 ((𝜑𝑎𝐴) → 𝑆 ∈ Fin)
6564mptexd 7082 . . . . 5 ((𝜑𝑎𝐴) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ V)
66 feq1 6565 . . . . . . 7 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → (:𝑆⟶ℕ0 ↔ (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0))
67 simpl 482 . . . . . . . . . 10 (( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∧ 𝑖𝑆) → = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))))
6867fveq1d 6758 . . . . . . . . 9 (( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∧ 𝑖𝑆) → (𝑖) = ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖))
6968sumeq2dv 15343 . . . . . . . 8 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → Σ𝑖𝑆 (𝑖) = Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖))
7069eqeq1d 2740 . . . . . . 7 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → (Σ𝑖𝑆 (𝑖) = 𝑁 ↔ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁))
7166, 70anbi12d 630 . . . . . 6 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → ((:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁) ↔ ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0 ∧ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁)))
7271elabg 3600 . . . . 5 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ V → ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)} ↔ ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0 ∧ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁)))
7365, 72syl 17 . . . 4 ((𝜑𝑎𝐴) → ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)} ↔ ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0 ∧ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁)))
7458, 73mpbird 256 . . 3 ((𝜑𝑎𝐴) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)})
75 sticksstones18.4 . . . 4 𝐵 = { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)}
7675a1i 11 . . 3 ((𝜑𝑎𝐴) → 𝐵 = { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)})
7774, 76eleqtrrd 2842 . 2 ((𝜑𝑎𝐴) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ 𝐵)
78 sticksstones18.6 . 2 𝐹 = (𝑎𝐴 ↦ (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))))
7977, 78fmptd 6970 1 (𝜑𝐹:𝐴𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  wa 395   = wceq 1539  wcel 2108  {cab 2715  Vcvv 3422  wss 3883   class class class wbr 5070  cmpt 5153  ccnv 5579  wf 6414  1-1-ontowf1o 6417  cfv 6418  (class class class)co 7255  cen 8688  Fincfn 8691  cc 10800  1c1 10803  0cn0 12163  ...cfz 13168  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-er 8456  df-en 8692  df-dom 8693  df-sdom 8694  df-fin 8695  df-sup 9131  df-oi 9199  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-fz 13169  df-fzo 13312  df-seq 13650  df-exp 13711  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:  sticksstones19  40049
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