Theorem resseqnbasd 13179

Description: The components of an extensible structure except the base set remain unchanged on a structure restriction. (Contributed by Mario Carneiro, 26-Nov-2014.) (Revised by Mario Carneiro, 2-Dec-2014.) (Revised by AV, 19-Oct-2024.)

Hypotheses

Ref	Expression
resseqnbas.r	⊢ 𝑅 = (𝑊 ↾s 𝐴)
resseqnbas.e	⊢ 𝐶 = (𝐸‘𝑊)
resseqnbasd.f	⊢ (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
resseqnbas.n	⊢ (𝐸‘ndx) ≠ (Base‘ndx)
resseqnbasd.w	⊢ (𝜑 → 𝑊 ∈ 𝑋)
resseqnbasd.a	⊢ (𝜑 → 𝐴 ∈ 𝑉)

Assertion

Ref	Expression
resseqnbasd	⊢ (𝜑 → 𝐶 = (𝐸‘𝑅))

Proof of Theorem resseqnbasd

Step	Hyp	Ref	Expression
1		resseqnbas.e	. 2 ⊢ 𝐶 = (𝐸‘𝑊)
2		resseqnbas.r	. . . . 5 ⊢ 𝑅 = (𝑊 ↾s 𝐴)
3		resseqnbasd.w	. . . . . 6 ⊢ (𝜑 → 𝑊 ∈ 𝑋)
4		resseqnbasd.a	. . . . . 6 ⊢ (𝜑 → 𝐴 ∈ 𝑉)
5		ressvalsets 13170	. . . . . 6 ⊢ ((𝑊 ∈ 𝑋 ∧ 𝐴 ∈ 𝑉) → (𝑊 ↾s 𝐴) = (𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩))
6	3, 4, 5	syl2anc 411	. . . . 5 ⊢ (𝜑 → (𝑊 ↾s 𝐴) = (𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩))
7	2, 6	eqtrid 2275	. . . 4 ⊢ (𝜑 → 𝑅 = (𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩))
8	7	fveq2d 5646	. . 3 ⊢ (𝜑 → (𝐸‘𝑅) = (𝐸‘(𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩)))
9		inex1g 4226	. . . . 5 ⊢ (𝐴 ∈ 𝑉 → (𝐴 ∩ (Base‘𝑊)) ∈ V)
10	4, 9	syl 14	. . . 4 ⊢ (𝜑 → (𝐴 ∩ (Base‘𝑊)) ∈ V)
11		resseqnbasd.f	. . . . 5 ⊢ (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ)
12		resseqnbas.n	. . . . 5 ⊢ (𝐸‘ndx) ≠ (Base‘ndx)
13		basendxnn 13161	. . . . 5 ⊢ (Base‘ndx) ∈ ℕ
14	11, 12, 13	setsslnid 13157	. . . 4 ⊢ ((𝑊 ∈ 𝑋 ∧ (𝐴 ∩ (Base‘𝑊)) ∈ V) → (𝐸‘𝑊) = (𝐸‘(𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩)))
15	3, 10, 14	syl2anc 411	. . 3 ⊢ (𝜑 → (𝐸‘𝑊) = (𝐸‘(𝑊 sSet ⟨(Base‘ndx), (𝐴 ∩ (Base‘𝑊))⟩)))
16	8, 15	eqtr4d 2266	. 2 ⊢ (𝜑 → (𝐸‘𝑅) = (𝐸‘𝑊))
17	1, 16	eqtr4id 2282	1 ⊢ (𝜑 → 𝐶 = (𝐸‘𝑅))

Syntax hints:   → wi 4   ∧ wa 104   = wceq 1397   ∈ wcel 2201   ≠ wne 2401  Vcvv 2801   ∩ cin 3198  ⟨cop 3673  ‘cfv 5328  (class class class)co 6023  ℕcn 9148  ndxcnx 13102   sSet csts 13103  Slot cslot 13104  Basecbs 13105   ↾_s cress 13106

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2203  ax-14 2204  ax-ext 2212  ax-sep 4208  ax-pow 4266  ax-pr 4301  ax-un 4532  ax-setind 4637  ax-cnex 8128  ax-resscn 8129  ax-1re 8131  ax-addrcl 8134

This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1810  df-eu 2081  df-mo 2082  df-clab 2217  df-cleq 2223  df-clel 2226  df-nfc 2362  df-ne 2402  df-ral 2514  df-rex 2515  df-rab 2518  df-v 2803  df-sbc 3031  df-dif 3201  df-un 3203  df-in 3205  df-ss 3212  df-nul 3494  df-pw 3655  df-sn 3676  df-pr 3677  df-op 3679  df-uni 3895  df-int 3930  df-br 4090  df-opab 4152  df-mpt 4153  df-id 4392  df-xp 4733  df-rel 4734  df-cnv 4735  df-co 4736  df-dm 4737  df-rn 4738  df-res 4739  df-iota 5288  df-fun 5330  df-fv 5336  df-ov 6026  df-oprab 6027  df-mpo 6028  df-inn 9149  df-ndx 13108  df-slot 13109  df-base 13111  df-sets 13112  df-iress 13113

This theorem is referenced by:  ressplusgd  13235  ressmulrg  13251  ressscag  13289  ressvscag  13290  ressipg  13291