Theorem sticksstones4 42576

Description: Equinumerosity lemma for sticks and stones. (Contributed by metakunt, 28-Sep-2024.)

Hypotheses

Ref	Expression
sticksstones4.1	⊢ (𝜑 → 𝑁 ∈ ℕ0)
sticksstones4.2	⊢ (𝜑 → 𝐾 ∈ ℕ0)
sticksstones4.3	⊢ 𝐵 = {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾}
sticksstones4.4	⊢ 𝐴 = {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))}

Assertion

Ref	Expression
sticksstones4	⊢ (𝜑 → 𝐴 ≈ 𝐵)

Distinct variable groups:   𝐴,𝑎   𝐴,𝑓   𝑥,𝐵,𝑦   𝐾,𝑎,𝑥,𝑦   𝑓,𝐾,𝑥,𝑦   𝑁,𝑎   𝑓,𝑁   𝜑,𝑎,𝑥,𝑦   𝜑,𝑓

Allowed substitution hints:   𝐴(𝑥,𝑦)   𝐵(𝑓,𝑎)   𝑁(𝑥,𝑦)

Proof of Theorem sticksstones4

Dummy variables 𝑝 𝑔 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		sticksstones4.1	. . . . . 6 ⊢ (𝜑 → 𝑁 ∈ ℕ0)
2		sticksstones4.2	. . . . . 6 ⊢ (𝜑 → 𝐾 ∈ ℕ0)
3		sticksstones4.3	. . . . . 6 ⊢ 𝐵 = {𝑎 ∈ 𝒫 (1...𝑁) ∣ (♯‘𝑎) = 𝐾}
4		sticksstones4.4	. . . . . 6 ⊢ 𝐴 = {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))}
5		eqid 2735	. . . . . 6 ⊢ (𝑝 ∈ 𝐴 ↦ ran 𝑝) = (𝑝 ∈ 𝐴 ↦ ran 𝑝)
6	1, 2, 3, 4, 5	sticksstones2 42574	. . . . 5 ⊢ (𝜑 → (𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1→𝐵)
7	1, 2, 3, 4, 5	sticksstones3 42575	. . . . 5 ⊢ (𝜑 → (𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–onto→𝐵)
8	6, 7	jca 511	. . . 4 ⊢ (𝜑 → ((𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1→𝐵 ∧ (𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–onto→𝐵))
9		df-f1o 6494	. . . 4 ⊢ ((𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1-onto→𝐵 ↔ ((𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1→𝐵 ∧ (𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–onto→𝐵))
10	8, 9	sylibr 234	. . 3 ⊢ (𝜑 → (𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1-onto→𝐵)
11		simpl 482	. . . . . . . . 9 ⊢ ((𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦))) → 𝑓:(1...𝐾)⟶(1...𝑁))
12	11	a1i 11	. . . . . . . 8 ⊢ (𝜑 → ((𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦))) → 𝑓:(1...𝐾)⟶(1...𝑁)))
13	12	ss2abdv 3998	. . . . . . 7 ⊢ (𝜑 → {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} ⊆ {𝑓 ∣ 𝑓:(1...𝐾)⟶(1...𝑁)})
14		fzfid 13924	. . . . . . . 8 ⊢ (𝜑 → (1...𝐾) ∈ Fin)
15		fzfid 13924	. . . . . . . 8 ⊢ (𝜑 → (1...𝑁) ∈ Fin)
16		mapex 7881	. . . . . . . 8 ⊢ (((1...𝐾) ∈ Fin ∧ (1...𝑁) ∈ Fin) → {𝑓 ∣ 𝑓:(1...𝐾)⟶(1...𝑁)} ∈ V)
17	14, 15, 16	syl2anc 585	. . . . . . 7 ⊢ (𝜑 → {𝑓 ∣ 𝑓:(1...𝐾)⟶(1...𝑁)} ∈ V)
18		ssexg 5253	. . . . . . 7 ⊢ (({𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} ⊆ {𝑓 ∣ 𝑓:(1...𝐾)⟶(1...𝑁)} ∧ {𝑓 ∣ 𝑓:(1...𝐾)⟶(1...𝑁)} ∈ V) → {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} ∈ V)
19	13, 17, 18	syl2anc 585	. . . . . 6 ⊢ (𝜑 → {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} ∈ V)
20	4	eleq1i 2826	. . . . . 6 ⊢ (𝐴 ∈ V ↔ {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...𝑁) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} ∈ V)
21	19, 20	sylibr 234	. . . . 5 ⊢ (𝜑 → 𝐴 ∈ V)
22	21	mptexd 7168	. . . 4 ⊢ (𝜑 → (𝑝 ∈ 𝐴 ↦ ran 𝑝) ∈ V)
23		f1oeq1 6757	. . . . . 6 ⊢ (𝑔 = (𝑝 ∈ 𝐴 ↦ ran 𝑝) → (𝑔:𝐴–1-1-onto→𝐵 ↔ (𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1-onto→𝐵))
24	23	biimprd 248	. . . . 5 ⊢ (𝑔 = (𝑝 ∈ 𝐴 ↦ ran 𝑝) → ((𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1-onto→𝐵 → 𝑔:𝐴–1-1-onto→𝐵))
25	24	adantl 481	. . . 4 ⊢ ((𝜑 ∧ 𝑔 = (𝑝 ∈ 𝐴 ↦ ran 𝑝)) → ((𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1-onto→𝐵 → 𝑔:𝐴–1-1-onto→𝐵))
26	22, 25	spcimedv 3535	. . 3 ⊢ (𝜑 → ((𝑝 ∈ 𝐴 ↦ ran 𝑝):𝐴–1-1-onto→𝐵 → ∃𝑔 𝑔:𝐴–1-1-onto→𝐵))
27	10, 26	mpd 15	. 2 ⊢ (𝜑 → ∃𝑔 𝑔:𝐴–1-1-onto→𝐵)
28		bren 8892	. 2 ⊢ (𝐴 ≈ 𝐵 ↔ ∃𝑔 𝑔:𝐴–1-1-onto→𝐵)
29	27, 28	sylibr 234	1 ⊢ (𝜑 → 𝐴 ≈ 𝐵)

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1542  ∃wex 1781   ∈ wcel 2114  {cab 2713  ∀wral 3049  {crab 3387  Vcvv 3427   ⊆ wss 3885  𝒫 cpw 4531   class class class wbr 5074   ↦ cmpt 5155  ran crn 5621  ⟶wf 6483  –1-1→wf1 6484  –onto→wfo 6485  –1-1-onto→wf1o 6486  ‘cfv 6487  (class class class)co 7356   ≈ cen 8879  Fincfn 8882  1c1 11028   < clt 11168  ℕ₀cn0 12426  ...cfz 13450  ♯chash 14281

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 2184  ax-ext 2707  ax-rep 5201  ax-sep 5220  ax-nul 5230  ax-pow 5296  ax-pr 5364  ax-un 7678  ax-cnex 11083  ax-resscn 11084  ax-1cn 11085  ax-icn 11086  ax-addcl 11087  ax-addrcl 11088  ax-mulcl 11089  ax-mulrcl 11090  ax-mulcom 11091  ax-addass 11092  ax-mulass 11093  ax-distr 11094  ax-i2m1 11095  ax-1ne0 11096  ax-1rid 11097  ax-rnegex 11098  ax-rrecex 11099  ax-cnre 11100  ax-pre-lttri 11101  ax-pre-lttrn 11102  ax-pre-ltadd 11103  ax-pre-mulgt0 11104  ax-pre-sup 11105

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 2538  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2810  df-nfc 2884  df-ne 2931  df-nel 3035  df-ral 3050  df-rex 3060  df-rmo 3340  df-reu 3341  df-rab 3388  df-v 3429  df-sbc 3726  df-csb 3834  df-dif 3888  df-un 3890  df-in 3892  df-ss 3902  df-pss 3905  df-nul 4264  df-if 4457  df-pw 4533  df-sn 4558  df-pr 4560  df-op 4564  df-uni 4841  df-int 4880  df-iun 4925  df-br 5075  df-opab 5137  df-mpt 5156  df-tr 5182  df-id 5515  df-eprel 5520  df-po 5528  df-so 5529  df-fr 5573  df-se 5574  df-we 5575  df-xp 5626  df-rel 5627  df-cnv 5628  df-co 5629  df-dm 5630  df-rn 5631  df-res 5632  df-ima 5633  df-pred 6254  df-ord 6315  df-on 6316  df-lim 6317  df-suc 6318  df-iota 6443  df-fun 6489  df-fn 6490  df-f 6491  df-f1 6492  df-fo 6493  df-f1o 6494  df-fv 6495  df-isom 6496  df-riota 7313  df-ov 7359  df-oprab 7360  df-mpo 7361  df-om 7807  df-1st 7931  df-2nd 7932  df-frecs 8220  df-wrecs 8251  df-recs 8300  df-rdg 8338  df-1o 8394  df-er 8632  df-en 8883  df-dom 8884  df-sdom 8885  df-fin 8886  df-sup 9344  df-inf 9345  df-oi 9414  df-card 9852  df-pnf 11170  df-mnf 11171  df-xr 11172  df-ltxr 11173  df-le 11174  df-sub 11368  df-neg 11369  df-nn 12164  df-n0 12427  df-z 12514  df-uz 12778  df-fz 13451  df-hash 14282

This theorem is referenced by:  sticksstones5  42577