Theorem fmla 35353

Description: The set of all valid Godel formulas. (Contributed by AV, 20-Sep-2023.)

Assertion

Ref	Expression
fmla	⊢ (Fmla‘ω) = ∪ 𝑛 ∈ ω (Fmla‘𝑛)

Proof of Theorem fmla

Dummy variables 𝑓 𝑖 𝑗 𝑢 𝑣 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-fmla 35317	. . 3 ⊢ Fmla = (𝑛 ∈ suc ω ↦ dom ((∅ Sat ∅)‘𝑛))
2	1	fveq1i 6827	. 2 ⊢ (Fmla‘ω) = ((𝑛 ∈ suc ω ↦ dom ((∅ Sat ∅)‘𝑛))‘ω)
3		omex 9558	. . 3 ⊢ ω ∈ V
4		eqidd 2730	. . . 4 ⊢ (ω ∈ V → (𝑛 ∈ suc ω ↦ dom ((∅ Sat ∅)‘𝑛)) = (𝑛 ∈ suc ω ↦ dom ((∅ Sat ∅)‘𝑛)))
5		fveq2 6826	. . . . . 6 ⊢ (𝑛 = ω → ((∅ Sat ∅)‘𝑛) = ((∅ Sat ∅)‘ω))
6	5	dmeqd 5852	. . . . 5 ⊢ (𝑛 = ω → dom ((∅ Sat ∅)‘𝑛) = dom ((∅ Sat ∅)‘ω))
7	6	adantl 481	. . . 4 ⊢ ((ω ∈ V ∧ 𝑛 = ω) → dom ((∅ Sat ∅)‘𝑛) = dom ((∅ Sat ∅)‘ω))
8		sucidg 6394	. . . 4 ⊢ (ω ∈ V → ω ∈ suc ω)
9		fvex 6839	. . . . . 6 ⊢ ((∅ Sat ∅)‘ω) ∈ V
10	9	dmex 7849	. . . . 5 ⊢ dom ((∅ Sat ∅)‘ω) ∈ V
11	10	a1i 11	. . . 4 ⊢ (ω ∈ V → dom ((∅ Sat ∅)‘ω) ∈ V)
12	4, 7, 8, 11	fvmptd 6941	. . 3 ⊢ (ω ∈ V → ((𝑛 ∈ suc ω ↦ dom ((∅ Sat ∅)‘𝑛))‘ω) = dom ((∅ Sat ∅)‘ω))
13	3, 12	ax-mp 5	. 2 ⊢ ((𝑛 ∈ suc ω ↦ dom ((∅ Sat ∅)‘𝑛))‘ω) = dom ((∅ Sat ∅)‘ω)
14	3	sucid 6395	. . . . . 6 ⊢ ω ∈ suc ω
15		satf0sucom 35345	. . . . . 6 ⊢ (ω ∈ suc ω → ((∅ Sat ∅)‘ω) = (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘ω))
16	14, 15	ax-mp 5	. . . . 5 ⊢ ((∅ Sat ∅)‘ω) = (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘ω)
17		limom 7822	. . . . . 6 ⊢ Lim ω
18		rdglim2a 8362	. . . . . 6 ⊢ ((ω ∈ V ∧ Lim ω) → (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘ω) = ∪ 𝑛 ∈ ω (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛))
19	3, 17, 18	mp2an 692	. . . . 5 ⊢ (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘ω) = ∪ 𝑛 ∈ ω (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛)
20	16, 19	eqtri 2752	. . . 4 ⊢ ((∅ Sat ∅)‘ω) = ∪ 𝑛 ∈ ω (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛)
21	20	dmeqi 5851	. . 3 ⊢ dom ((∅ Sat ∅)‘ω) = dom ∪ 𝑛 ∈ ω (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛)
22		dmiun 5860	. . 3 ⊢ dom ∪ 𝑛 ∈ ω (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛) = ∪ 𝑛 ∈ ω dom (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛)
23		elelsuc 6386	. . . . . 6 ⊢ (𝑛 ∈ ω → 𝑛 ∈ suc ω)
24		fmlafv 35352	. . . . . 6 ⊢ (𝑛 ∈ suc ω → (Fmla‘𝑛) = dom ((∅ Sat ∅)‘𝑛))
25	23, 24	syl 17	. . . . 5 ⊢ (𝑛 ∈ ω → (Fmla‘𝑛) = dom ((∅ Sat ∅)‘𝑛))
26		satf0sucom 35345	. . . . . . 7 ⊢ (𝑛 ∈ suc ω → ((∅ Sat ∅)‘𝑛) = (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛))
27	23, 26	syl 17	. . . . . 6 ⊢ (𝑛 ∈ ω → ((∅ Sat ∅)‘𝑛) = (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛))
28	27	dmeqd 5852	. . . . 5 ⊢ (𝑛 ∈ ω → dom ((∅ Sat ∅)‘𝑛) = dom (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛))
29	25, 28	eqtr2d 2765	. . . 4 ⊢ (𝑛 ∈ ω → dom (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛) = (Fmla‘𝑛))
30	29	iuneq2i 4966	. . 3 ⊢ ∪ 𝑛 ∈ ω dom (rec((𝑓 ∈ V ↦ (𝑓 ∪ {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑢 ∈ 𝑓 (∃𝑣 ∈ 𝑓 𝑥 = ((1st ‘𝑢)⊼𝑔(1st ‘𝑣)) ∨ ∃𝑖 ∈ ω 𝑥 = ∀𝑔𝑖(1st ‘𝑢)))})), {⟨𝑥, 𝑦⟩ ∣ (𝑦 = ∅ ∧ ∃𝑖 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑖∈𝑔𝑗))})‘𝑛) = ∪ 𝑛 ∈ ω (Fmla‘𝑛)
31	21, 22, 30	3eqtri 2756	. 2 ⊢ dom ((∅ Sat ∅)‘ω) = ∪ 𝑛 ∈ ω (Fmla‘𝑛)
32	2, 13, 31	3eqtri 2756	1 ⊢ (Fmla‘ω) = ∪ 𝑛 ∈ ω (Fmla‘𝑛)

Syntax hints:   ∧ wa 395   ∨ wo 847   = wceq 1540   ∈ wcel 2109  ∃wrex 3053  Vcvv 3438   ∪ cun 3903  ∅c0 4286  ∪ ciun 4944  {copab 5157   ↦ cmpt 5176  dom cdm 5623  Lim wlim 6312  suc csuc 6313  ‘cfv 6486  (class class class)co 7353  ωcom 7806  1^st c1st 7929  reccrdg 8338  ∈_𝑔cgoe 35305  ⊼_𝑔cgna 35306  ∀_𝑔cgol 35307   Sat csat 35308  Fmlacfmla 35309

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 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-rep 5221  ax-sep 5238  ax-nul 5248  ax-pow 5307  ax-pr 5374  ax-un 7675  ax-inf2 9556

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 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-ral 3045  df-rex 3054  df-reu 3346  df-rab 3397  df-v 3440  df-sbc 3745  df-csb 3854  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-pss 3925  df-nul 4287  df-if 4479  df-pw 4555  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4862  df-iun 4946  df-br 5096  df-opab 5158  df-mpt 5177  df-tr 5203  df-id 5518  df-eprel 5523  df-po 5531  df-so 5532  df-fr 5576  df-we 5578  df-xp 5629  df-rel 5630  df-cnv 5631  df-co 5632  df-dm 5633  df-rn 5634  df-res 5635  df-ima 5636  df-pred 6253  df-ord 6314  df-on 6315  df-lim 6316  df-suc 6317  df-iota 6442  df-fun 6488  df-fn 6489  df-f 6490  df-f1 6491  df-fo 6492  df-f1o 6493  df-fv 6494  df-ov 7356  df-oprab 7357  df-mpo 7358  df-om 7807  df-1st 7931  df-2nd 7932  df-frecs 8221  df-wrecs 8252  df-recs 8301  df-rdg 8339  df-map 8762  df-sat 35315  df-fmla 35317

This theorem is referenced by:  fmlan0  35363  satfun  35383