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Theorem sticksstones17 42176
Description: Extend sticks and stones to finite sets, bijective builder. (Contributed by metakunt, 23-Oct-2024.)
Hypotheses
Ref Expression
sticksstones17.1 (𝜑𝑁 ∈ ℕ0)
sticksstones17.2 (𝜑𝐾 ∈ ℕ0)
sticksstones17.3 𝐴 = {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)}
sticksstones17.4 𝐵 = { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)}
sticksstones17.5 (𝜑𝑍:(1...𝐾)–1-1-onto𝑆)
sticksstones17.6 𝐺 = (𝑏𝐵 ↦ (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))))
Assertion
Ref Expression
sticksstones17 (𝜑𝐺:𝐵𝐴)
Distinct variable groups:   𝐴,𝑏   𝐵,𝑏,𝑖,𝑦   𝑔,𝐾,𝑖,𝑦   𝑔,𝑁   ,𝑁   𝑆,,𝑖   𝑔,𝑍,𝑖,𝑦   𝑔,𝑏   ,𝑏   𝜑,𝑏,𝑖,𝑦
Allowed substitution hints:   𝜑(𝑔,)   𝐴(𝑦,𝑔,,𝑖)   𝐵(𝑔,)   𝑆(𝑦,𝑔,𝑏)   𝐺(𝑦,𝑔,,𝑖,𝑏)   𝐾(,𝑏)   𝑁(𝑦,𝑖,𝑏)   𝑍(,𝑏)

Proof of Theorem sticksstones17
Dummy variable 𝑠 is distinct from all other variables.
StepHypRef Expression
1 sticksstones17.4 . . . . . . . . . . . . . . . 16 𝐵 = { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)}
21eqimssi 4019 . . . . . . . . . . . . . . 15 𝐵 ⊆ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)}
32a1i 11 . . . . . . . . . . . . . 14 (𝜑𝐵 ⊆ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)})
43sseld 3957 . . . . . . . . . . . . 13 (𝜑 → (𝑏𝐵𝑏 ∈ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)}))
54imp 406 . . . . . . . . . . . 12 ((𝜑𝑏𝐵) → 𝑏 ∈ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)})
6 vex 3463 . . . . . . . . . . . . 13 𝑏 ∈ V
7 feq1 6686 . . . . . . . . . . . . . 14 ( = 𝑏 → (:𝑆⟶ℕ0𝑏:𝑆⟶ℕ0))
8 simpl 482 . . . . . . . . . . . . . . . . 17 (( = 𝑏𝑖𝑆) → = 𝑏)
98fveq1d 6878 . . . . . . . . . . . . . . . 16 (( = 𝑏𝑖𝑆) → (𝑖) = (𝑏𝑖))
109sumeq2dv 15718 . . . . . . . . . . . . . . 15 ( = 𝑏 → Σ𝑖𝑆 (𝑖) = Σ𝑖𝑆 (𝑏𝑖))
1110eqeq1d 2737 . . . . . . . . . . . . . 14 ( = 𝑏 → (Σ𝑖𝑆 (𝑖) = 𝑁 ↔ Σ𝑖𝑆 (𝑏𝑖) = 𝑁))
127, 11anbi12d 632 . . . . . . . . . . . . 13 ( = 𝑏 → ((:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁) ↔ (𝑏:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑏𝑖) = 𝑁)))
136, 12elab 3658 . . . . . . . . . . . 12 (𝑏 ∈ { ∣ (:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑖) = 𝑁)} ↔ (𝑏:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑏𝑖) = 𝑁))
145, 13sylib 218 . . . . . . . . . . 11 ((𝜑𝑏𝐵) → (𝑏:𝑆⟶ℕ0 ∧ Σ𝑖𝑆 (𝑏𝑖) = 𝑁))
1514simpld 494 . . . . . . . . . 10 ((𝜑𝑏𝐵) → 𝑏:𝑆⟶ℕ0)
1615adantr 480 . . . . . . . . 9 (((𝜑𝑏𝐵) ∧ 𝑦 ∈ (1...𝐾)) → 𝑏:𝑆⟶ℕ0)
17163impa 1109 . . . . . . . 8 ((𝜑𝑏𝐵𝑦 ∈ (1...𝐾)) → 𝑏:𝑆⟶ℕ0)
18 sticksstones17.5 . . . . . . . . . . . . 13 (𝜑𝑍:(1...𝐾)–1-1-onto𝑆)
19 f1of 6818 . . . . . . . . . . . . 13 (𝑍:(1...𝐾)–1-1-onto𝑆𝑍:(1...𝐾)⟶𝑆)
2018, 19syl 17 . . . . . . . . . . . 12 (𝜑𝑍:(1...𝐾)⟶𝑆)
2120adantr 480 . . . . . . . . . . 11 ((𝜑𝑏𝐵) → 𝑍:(1...𝐾)⟶𝑆)
2221adantr 480 . . . . . . . . . 10 (((𝜑𝑏𝐵) ∧ 𝑦 ∈ (1...𝐾)) → 𝑍:(1...𝐾)⟶𝑆)
23223impa 1109 . . . . . . . . 9 ((𝜑𝑏𝐵𝑦 ∈ (1...𝐾)) → 𝑍:(1...𝐾)⟶𝑆)
24 simp3 1138 . . . . . . . . 9 ((𝜑𝑏𝐵𝑦 ∈ (1...𝐾)) → 𝑦 ∈ (1...𝐾))
2523, 24ffvelcdmd 7075 . . . . . . . 8 ((𝜑𝑏𝐵𝑦 ∈ (1...𝐾)) → (𝑍𝑦) ∈ 𝑆)
2617, 25ffvelcdmd 7075 . . . . . . 7 ((𝜑𝑏𝐵𝑦 ∈ (1...𝐾)) → (𝑏‘(𝑍𝑦)) ∈ ℕ0)
27263expa 1118 . . . . . 6 (((𝜑𝑏𝐵) ∧ 𝑦 ∈ (1...𝐾)) → (𝑏‘(𝑍𝑦)) ∈ ℕ0)
2827fmpttd 7105 . . . . 5 ((𝜑𝑏𝐵) → (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))):(1...𝐾)⟶ℕ0)
29 eqidd 2736 . . . . . . . 8 (((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) → (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))))
30 simpr 484 . . . . . . . . . 10 ((((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) ∧ 𝑦 = 𝑖) → 𝑦 = 𝑖)
3130fveq2d 6880 . . . . . . . . 9 ((((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) ∧ 𝑦 = 𝑖) → (𝑍𝑦) = (𝑍𝑖))
3231fveq2d 6880 . . . . . . . 8 ((((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) ∧ 𝑦 = 𝑖) → (𝑏‘(𝑍𝑦)) = (𝑏‘(𝑍𝑖)))
33 simpr 484 . . . . . . . 8 (((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) → 𝑖 ∈ (1...𝐾))
34 fvexd 6891 . . . . . . . 8 (((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) → (𝑏‘(𝑍𝑖)) ∈ V)
3529, 32, 33, 34fvmptd 6993 . . . . . . 7 (((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) → ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = (𝑏‘(𝑍𝑖)))
3635sumeq2dv 15718 . . . . . 6 ((𝜑𝑏𝐵) → Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = Σ𝑖 ∈ (1...𝐾)(𝑏‘(𝑍𝑖)))
37 fveq2 6876 . . . . . . . . 9 (𝑠 = (𝑍𝑖) → (𝑏𝑠) = (𝑏‘(𝑍𝑖)))
38 fzfi 13990 . . . . . . . . . 10 (1...𝐾) ∈ Fin
3938a1i 11 . . . . . . . . 9 ((𝜑𝑏𝐵) → (1...𝐾) ∈ Fin)
4018adantr 480 . . . . . . . . 9 ((𝜑𝑏𝐵) → 𝑍:(1...𝐾)–1-1-onto𝑆)
41 eqidd 2736 . . . . . . . . 9 (((𝜑𝑏𝐵) ∧ 𝑖 ∈ (1...𝐾)) → (𝑍𝑖) = (𝑍𝑖))
42 nn0sscn 12506 . . . . . . . . . . . 12 0 ⊆ ℂ
4342a1i 11 . . . . . . . . . . 11 ((𝜑𝑏𝐵) → ℕ0 ⊆ ℂ)
44 fss 6722 . . . . . . . . . . 11 ((𝑏:𝑆⟶ℕ0 ∧ ℕ0 ⊆ ℂ) → 𝑏:𝑆⟶ℂ)
4515, 43, 44syl2anc 584 . . . . . . . . . 10 ((𝜑𝑏𝐵) → 𝑏:𝑆⟶ℂ)
4645ffvelcdmda 7074 . . . . . . . . 9 (((𝜑𝑏𝐵) ∧ 𝑠𝑆) → (𝑏𝑠) ∈ ℂ)
4737, 39, 40, 41, 46fsumf1o 15739 . . . . . . . 8 ((𝜑𝑏𝐵) → Σ𝑠𝑆 (𝑏𝑠) = Σ𝑖 ∈ (1...𝐾)(𝑏‘(𝑍𝑖)))
4847eqcomd 2741 . . . . . . 7 ((𝜑𝑏𝐵) → Σ𝑖 ∈ (1...𝐾)(𝑏‘(𝑍𝑖)) = Σ𝑠𝑆 (𝑏𝑠))
49 fveq2 6876 . . . . . . . . . 10 (𝑠 = 𝑖 → (𝑏𝑠) = (𝑏𝑖))
5049cbvsumv 15712 . . . . . . . . 9 Σ𝑠𝑆 (𝑏𝑠) = Σ𝑖𝑆 (𝑏𝑖)
5150a1i 11 . . . . . . . 8 ((𝜑𝑏𝐵) → Σ𝑠𝑆 (𝑏𝑠) = Σ𝑖𝑆 (𝑏𝑖))
5214simprd 495 . . . . . . . 8 ((𝜑𝑏𝐵) → Σ𝑖𝑆 (𝑏𝑖) = 𝑁)
5351, 52eqtrd 2770 . . . . . . 7 ((𝜑𝑏𝐵) → Σ𝑠𝑆 (𝑏𝑠) = 𝑁)
5448, 53eqtrd 2770 . . . . . 6 ((𝜑𝑏𝐵) → Σ𝑖 ∈ (1...𝐾)(𝑏‘(𝑍𝑖)) = 𝑁)
5536, 54eqtrd 2770 . . . . 5 ((𝜑𝑏𝐵) → Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = 𝑁)
5628, 55jca 511 . . . 4 ((𝜑𝑏𝐵) → ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))):(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = 𝑁))
57 fzfid 13991 . . . . . 6 ((𝜑𝑏𝐵) → (1...𝐾) ∈ Fin)
5857mptexd 7216 . . . . 5 ((𝜑𝑏𝐵) → (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∈ V)
59 feq1 6686 . . . . . . 7 (𝑔 = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) → (𝑔:(1...𝐾)⟶ℕ0 ↔ (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))):(1...𝐾)⟶ℕ0))
60 simpl 482 . . . . . . . . . 10 ((𝑔 = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∧ 𝑖 ∈ (1...𝐾)) → 𝑔 = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))))
6160fveq1d 6878 . . . . . . . . 9 ((𝑔 = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∧ 𝑖 ∈ (1...𝐾)) → (𝑔𝑖) = ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖))
6261sumeq2dv 15718 . . . . . . . 8 (𝑔 = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) → Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖))
6362eqeq1d 2737 . . . . . . 7 (𝑔 = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) → (Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁 ↔ Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = 𝑁))
6459, 63anbi12d 632 . . . . . 6 (𝑔 = (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) → ((𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁) ↔ ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))):(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = 𝑁)))
6564elabg 3655 . . . . 5 ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∈ V → ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)} ↔ ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))):(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = 𝑁)))
6658, 65syl 17 . . . 4 ((𝜑𝑏𝐵) → ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)} ↔ ((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))):(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)((𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦)))‘𝑖) = 𝑁)))
6756, 66mpbird 257 . . 3 ((𝜑𝑏𝐵) → (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∈ {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)})
68 sticksstones17.3 . . . 4 𝐴 = {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)}
6968a1i 11 . . 3 ((𝜑𝑏𝐵) → 𝐴 = {𝑔 ∣ (𝑔:(1...𝐾)⟶ℕ0 ∧ Σ𝑖 ∈ (1...𝐾)(𝑔𝑖) = 𝑁)})
7067, 69eleqtrrd 2837 . 2 ((𝜑𝑏𝐵) → (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))) ∈ 𝐴)
71 sticksstones17.6 . 2 𝐺 = (𝑏𝐵 ↦ (𝑦 ∈ (1...𝐾) ↦ (𝑏‘(𝑍𝑦))))
7270, 71fmptd 7104 1 (𝜑𝐺:𝐵𝐴)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395  w3a 1086   = wceq 1540  wcel 2108  {cab 2713  Vcvv 3459  wss 3926  cmpt 5201  wf 6527  1-1-ontowf1o 6530  cfv 6531  (class class class)co 7405  Fincfn 8959  cc 11127  1c1 11130  0cn0 12501  ...cfz 13524  Σcsu 15702
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2707  ax-rep 5249  ax-sep 5266  ax-nul 5276  ax-pow 5335  ax-pr 5402  ax-un 7729  ax-inf2 9655  ax-cnex 11185  ax-resscn 11186  ax-1cn 11187  ax-icn 11188  ax-addcl 11189  ax-addrcl 11190  ax-mulcl 11191  ax-mulrcl 11192  ax-mulcom 11193  ax-addass 11194  ax-mulass 11195  ax-distr 11196  ax-i2m1 11197  ax-1ne0 11198  ax-1rid 11199  ax-rnegex 11200  ax-rrecex 11201  ax-cnre 11202  ax-pre-lttri 11203  ax-pre-lttrn 11204  ax-pre-ltadd 11205  ax-pre-mulgt0 11206  ax-pre-sup 11207
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-nfc 2885  df-ne 2933  df-nel 3037  df-ral 3052  df-rex 3061  df-rmo 3359  df-reu 3360  df-rab 3416  df-v 3461  df-sbc 3766  df-csb 3875  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-pss 3946  df-nul 4309  df-if 4501  df-pw 4577  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-int 4923  df-iun 4969  df-br 5120  df-opab 5182  df-mpt 5202  df-tr 5230  df-id 5548  df-eprel 5553  df-po 5561  df-so 5562  df-fr 5606  df-se 5607  df-we 5608  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-rn 5665  df-res 5666  df-ima 5667  df-pred 6290  df-ord 6355  df-on 6356  df-lim 6357  df-suc 6358  df-iota 6484  df-fun 6533  df-fn 6534  df-f 6535  df-f1 6536  df-fo 6537  df-f1o 6538  df-fv 6539  df-isom 6540  df-riota 7362  df-ov 7408  df-oprab 7409  df-mpo 7410  df-om 7862  df-1st 7988  df-2nd 7989  df-frecs 8280  df-wrecs 8311  df-recs 8385  df-rdg 8424  df-1o 8480  df-er 8719  df-en 8960  df-dom 8961  df-sdom 8962  df-fin 8963  df-sup 9454  df-oi 9524  df-card 9953  df-pnf 11271  df-mnf 11272  df-xr 11273  df-ltxr 11274  df-le 11275  df-sub 11468  df-neg 11469  df-div 11895  df-nn 12241  df-2 12303  df-3 12304  df-n0 12502  df-z 12589  df-uz 12853  df-rp 13009  df-fz 13525  df-fzo 13672  df-seq 14020  df-exp 14080  df-hash 14349  df-cj 15118  df-re 15119  df-im 15120  df-sqrt 15254  df-abs 15255  df-clim 15504  df-sum 15703
This theorem is referenced by:  sticksstones19  42178
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