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Theorem sticksstones18 42858
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 4005 . . . . . . . . . . . . 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 3944 . . . . . . . . . . 11 (𝜑 → (𝑎𝐴𝑎 ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)}))
54imp 411 . . . . . . . . . 10 ((𝜑𝑎𝐴) → 𝑎 ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)})
6 vex 3467 . . . . . . . . . . 11 𝑎 ∈ V
7 feq1 6686 . . . . . . . . . . . 12 (𝑔 = 𝑎 → (𝑔:(1...𝐾)⟶ℕ0𝑎:(1...𝐾)⟶ℕ0))
8 simpl 487 . . . . . . . . . . . . . . 15 ((𝑔 = 𝑎𝑖 ∈ (1...𝐾)) → 𝑔 = 𝑎)
98fveq1d 6886 . . . . . . . . . . . . . 14 ((𝑔 = 𝑎𝑖 ∈ (1...𝐾)) → (𝑔𝑖) = (𝑎𝑖))
109sumeq2dv 15755 . . . . . . . . . . . . 13 (𝑔 = 𝑎 → Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = Σ𝑖 ∈ (1...𝐾)(𝑎𝑖))
1110eqeq1d 2771 . . . . . . . . . . . 12 (𝑔 = 𝑎 → (Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁 ↔ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁))
127, 11anbi12d 643 . . . . . . . . . . 11 (𝑔 = 𝑎 → ((𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁) ↔ (𝑎:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁)))
136, 12elab 3647 . . . . . . . . . 10 (𝑎 ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)} ↔ (𝑎:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁))
145, 13sylib 221 . . . . . . . . 9 ((𝜑𝑎𝐴) → (𝑎:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁))
1514simpld 499 . . . . . . . 8 ((𝜑𝑎𝐴) → 𝑎:(1...𝐾)⟶ℕ0)
1615adantr 485 . . . . . . 7 (((𝜑𝑎𝐴) ∧ 𝑥𝑆) → 𝑎:(1...𝐾)⟶ℕ0)
17 sticksstones18.5 . . . . . . . . . . 11 (𝜑𝑍:(1...𝐾)–1-1-onto𝑆)
18 f1ocnv 6836 . . . . . . . . . . 11 (𝑍:(1...𝐾)–1-1-onto𝑆𝑍:𝑆1-1-onto→(1...𝐾))
1917, 18syl 18 . . . . . . . . . 10 (𝜑𝑍:𝑆1-1-onto→(1...𝐾))
20 f1of 6823 . . . . . . . . . 10 (𝑍:𝑆1-1-onto→(1...𝐾) → 𝑍:𝑆⟶(1...𝐾))
2119, 20syl 18 . . . . . . . . 9 (𝜑𝑍:𝑆⟶(1...𝐾))
2221adantr 485 . . . . . . . 8 ((𝜑𝑎𝐴) → 𝑍:𝑆⟶(1...𝐾))
2322ffvelcdmda 7082 . . . . . . 7 (((𝜑𝑎𝐴) ∧ 𝑥𝑆) → (𝑍𝑥) ∈ (1...𝐾))
2416, 23ffvelcdmd 7083 . . . . . 6 (((𝜑𝑎𝐴) ∧ 𝑥𝑆) → (𝑎‘(𝑍𝑥)) ∈ ℕ0)
2524fmpttd 7113 . . . . 5 ((𝜑𝑎𝐴) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0)
26 eqidd 2770 . . . . . . . 8 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))))
27 simpr 489 . . . . . . . . . 10 ((((𝜑𝑎𝐴) ∧ 𝑖𝑆) ∧ 𝑥 = 𝑖) → 𝑥 = 𝑖)
2827fveq2d 6888 . . . . . . . . 9 ((((𝜑𝑎𝐴) ∧ 𝑖𝑆) ∧ 𝑥 = 𝑖) → (𝑍𝑥) = (𝑍𝑖))
2928fveq2d 6888 . . . . . . . 8 ((((𝜑𝑎𝐴) ∧ 𝑖𝑆) ∧ 𝑥 = 𝑖) → (𝑎‘(𝑍𝑥)) = (𝑎‘(𝑍𝑖)))
30 simpr 489 . . . . . . . 8 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → 𝑖𝑆)
31 fvexd 6899 . . . . . . . 8 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → (𝑎‘(𝑍𝑖)) ∈ V)
3226, 29, 30, 31fvmptd 7000 . . . . . . 7 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = (𝑎‘(𝑍𝑖)))
3332sumeq2dv 15755 . . . . . 6 ((𝜑𝑎𝐴) → Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = Σ𝑖𝑆 (𝑎‘(𝑍𝑖)))
34 fveq2 6884 . . . . . . . . 9 (𝑛 = (𝑍𝑖) → (𝑎𝑛) = (𝑎‘(𝑍𝑖)))
35 fzfid 14011 . . . . . . . . . 10 ((𝜑𝑎𝐴) → (1...𝐾) ∈ Fin)
3617adantr 485 . . . . . . . . . . . 12 ((𝜑𝑎𝐴) → 𝑍:(1...𝐾)–1-1-onto𝑆)
37 f1oenfi 9165 . . . . . . . . . . . 12 (((1...𝐾) ∈ Fin ∧ 𝑍:(1...𝐾)–1-1-onto𝑆) → (1...𝐾) ≈ 𝑆)
3835, 36, 37syl2anc 595 . . . . . . . . . . 11 ((𝜑𝑎𝐴) → (1...𝐾) ≈ 𝑆)
3938ensymd 9004 . . . . . . . . . 10 ((𝜑𝑎𝐴) → 𝑆 ≈ (1...𝐾))
40 enfii 9172 . . . . . . . . . 10 (((1...𝐾) ∈ Fin ∧ 𝑆 ≈ (1...𝐾)) → 𝑆 ∈ Fin)
4135, 39, 40syl2anc 595 . . . . . . . . 9 ((𝜑𝑎𝐴) → 𝑆 ∈ Fin)
4219adantr 485 . . . . . . . . 9 ((𝜑𝑎𝐴) → 𝑍:𝑆1-1-onto→(1...𝐾))
43 eqidd 2770 . . . . . . . . 9 (((𝜑𝑎𝐴) ∧ 𝑖𝑆) → (𝑍𝑖) = (𝑍𝑖))
44 nn0sscn 12511 . . . . . . . . . . . 12 0 ⊆ ℂ
4544a1i 11 . . . . . . . . . . 11 ((𝜑𝑎𝐴) → ℕ0 ⊆ ℂ)
46 fss 6725 . . . . . . . . . . 11 ((𝑎:(1...𝐾)⟶ℕ0 ∧ ℕ0 ⊆ ℂ) → 𝑎:(1...𝐾)⟶ℂ)
4715, 45, 46syl2anc 595 . . . . . . . . . 10 ((𝜑𝑎𝐴) → 𝑎:(1...𝐾)⟶ℂ)
4847ffvelcdmda 7082 . . . . . . . . 9 (((𝜑𝑎𝐴) ∧ 𝑛 ∈ (1...𝐾)) → (𝑎𝑛) ∈ ℂ)
4934, 41, 42, 43, 48fsumf1o 15776 . . . . . . . 8 ((𝜑𝑎𝐴) → Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = Σ𝑖𝑆 (𝑎‘(𝑍𝑖)))
5049eqcomd 2775 . . . . . . 7 ((𝜑𝑎𝐴) → Σ𝑖𝑆 (𝑎‘(𝑍𝑖)) = Σ𝑛 ∈ (1...𝐾)(𝑎𝑛))
51 fveq2 6884 . . . . . . . . . 10 (𝑛 = 𝑖 → (𝑎𝑛) = (𝑎𝑖))
5251cbvsumv 15749 . . . . . . . . 9 Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = Σ𝑖 ∈ (1...𝐾)(𝑎𝑖)
5352a1i 11 . . . . . . . 8 ((𝜑𝑎𝐴) → Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = Σ𝑖 ∈ (1...𝐾)(𝑎𝑖))
5414simprd 500 . . . . . . . 8 ((𝜑𝑎𝐴) → Σ𝑖 ∈ (1...𝐾)(𝑎𝑖) = 𝑁)
5553, 54eqtrd 2804 . . . . . . 7 ((𝜑𝑎𝐴) → Σ𝑛 ∈ (1...𝐾)(𝑎𝑛) = 𝑁)
5650, 55eqtrd 2804 . . . . . 6 ((𝜑𝑎𝐴) → Σ𝑖𝑆 (𝑎‘(𝑍𝑖)) = 𝑁)
5733, 56eqtrd 2804 . . . . 5 ((𝜑𝑎𝐴) → Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁)
5825, 57jca 520 . . . 4 ((𝜑𝑎𝐴) → ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0 ∧ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁))
59 fzfid 14011 . . . . . . . 8 (𝜑 → (1...𝐾) ∈ Fin)
6059adantr 485 . . . . . . 7 ((𝜑𝑎𝐴) → (1...𝐾) ∈ Fin)
6159, 17, 37syl2anc 595 . . . . . . . . 9 (𝜑 → (1...𝐾) ≈ 𝑆)
6261ensymd 9004 . . . . . . . 8 (𝜑𝑆 ≈ (1...𝐾))
6362adantr 485 . . . . . . 7 ((𝜑𝑎𝐴) → 𝑆 ≈ (1...𝐾))
6460, 63, 40syl2anc 595 . . . . . 6 ((𝜑𝑎𝐴) → 𝑆 ∈ Fin)
6564mptexd 7225 . . . . 5 ((𝜑𝑎𝐴) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ V)
66 feq1 6686 . . . . . . 7 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → (:𝑆⟶ℕ0 ↔ (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0))
67 simpl 487 . . . . . . . . . 10 (( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∧ 𝑖𝑆) → = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))))
6867fveq1d 6886 . . . . . . . . 9 (( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∧ 𝑖𝑆) → (𝑖) = ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖))
6968sumeq2dv 15755 . . . . . . . 8 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → Σ𝑖𝑆 (𝑖) = Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖))
7069eqeq1d 2771 . . . . . . 7 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → (Σ𝑖𝑆 (𝑖) = 𝑁 ↔ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁))
7166, 70anbi12d 643 . . . . . 6 ( = (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) → ((:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁) ↔ ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0 ∧ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁)))
7271elabg 3644 . . . . 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 18 . . . 4 ((𝜑𝑎𝐴) → ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)} ↔ ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))):𝑆⟶ℕ0 ∧ Σ𝑖𝑆 ((𝑥𝑆 ↦ (𝑎‘(𝑍𝑥)))‘𝑖) = 𝑁)))
7458, 73mpbird 260 . . 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 2872 . 2 ((𝜑𝑎𝐴) → (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))) ∈ 𝐵)
78 sticksstones18.6 . 2 𝐹 = (𝑎𝐴 ↦ (𝑥𝑆 ↦ (𝑎‘(𝑍𝑥))))
7977, 78fmptd 7112 1 (𝜑𝐹:𝐴𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 209  wa 400   = wceq 1567  wcel 2149  {cab 2747  Vcvv 3463  wss 3913   class class class wbr 5113  cmpt 5196  ccnv 5663  wf 6535  1-1-ontowf1o 6538  cfv 6539  (class class class)co 7413  cen 8942  Fincfn 8945  cc 11100  1c1 11103  0cn0 12506  ...cfz 13537  Σcsu 15739
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5242  ax-sep 5261  ax-nul 5273  ax-pow 5339  ax-pr 5407  ax-un 7735  ax-inf2 9612  ax-cnex 11158  ax-resscn 11159  ax-1cn 11160  ax-icn 11161  ax-addcl 11162  ax-addrcl 11163  ax-mulcl 11164  ax-mulrcl 11165  ax-mulcom 11166  ax-addass 11167  ax-mulass 11168  ax-distr 11169  ax-i2m1 11170  ax-1ne0 11171  ax-1rid 11172  ax-rnegex 11173  ax-rrecex 11174  ax-cnre 11175  ax-pre-lttri 11176  ax-pre-lttrn 11177  ax-pre-ltadd 11178  ax-pre-mulgt0 11179  ax-pre-sup 11180
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-nel 3071  df-ral 3086  df-rex 3096  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-pss 3933  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4877  df-int 4917  df-iun 4962  df-br 5114  df-opab 5178  df-mpt 5197  df-tr 5223  df-id 5559  df-eprel 5564  df-po 5572  df-so 5573  df-fr 5617  df-se 5618  df-we 5619  df-xp 5670  df-rel 5671  df-cnv 5672  df-co 5673  df-dm 5674  df-rn 5675  df-res 5676  df-ima 5677  df-pred 6305  df-ord 6366  df-on 6367  df-lim 6368  df-suc 6369  df-iota 6495  df-fun 6541  df-fn 6542  df-f 6543  df-f1 6544  df-fo 6545  df-f1o 6546  df-fv 6547  df-isom 6548  df-riota 7370  df-ov 7416  df-oprab 7417  df-mpo 7418  df-om 7865  df-1st 7988  df-2nd 7989  df-frecs 8280  df-wrecs 8311  df-recs 8360  df-rdg 8399  df-1o 8455  df-er 8696  df-en 8946  df-dom 8947  df-sdom 8948  df-fin 8949  df-sup 9404  df-oi 9474  df-card 9927  df-pnf 11247  df-mnf 11248  df-xr 11249  df-ltxr 11250  df-le 11251  df-sub 11445  df-neg 11446  df-div 11874  df-nn 12236  df-2 12305  df-3 12306  df-n0 12507  df-z 12594  df-uz 12865  df-rp 13019  df-fz 13538  df-fzo 13685  df-seq 14040  df-exp 14100  df-hash 14369  df-cj 15152  df-re 15153  df-im 15154  df-sqrt 15288  df-abs 15289  df-clim 15541  df-sum 15740
This theorem is referenced by:  sticksstones19  42859
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