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Theorem caussi 23141
 Description: Cauchy sequence on a metric subspace. (Contributed by NM, 30-Jan-2008.) (Revised by Mario Carneiro, 30-Dec-2013.)
Assertion
Ref Expression
caussi (𝐷 ∈ (∞Met‘𝑋) → (Cau‘(𝐷 ↾ (𝑌 × 𝑌))) ⊆ (Cau‘𝐷))

Proof of Theorem caussi
Dummy variables 𝑥 𝑓 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 inss1 3866 . . . . . . . . 9 (𝑋𝑌) ⊆ 𝑋
2 xpss2 5162 . . . . . . . . 9 ((𝑋𝑌) ⊆ 𝑋 → (ℂ × (𝑋𝑌)) ⊆ (ℂ × 𝑋))
31, 2ax-mp 5 . . . . . . . 8 (ℂ × (𝑋𝑌)) ⊆ (ℂ × 𝑋)
4 sstr 3644 . . . . . . . 8 ((𝑓 ⊆ (ℂ × (𝑋𝑌)) ∧ (ℂ × (𝑋𝑌)) ⊆ (ℂ × 𝑋)) → 𝑓 ⊆ (ℂ × 𝑋))
53, 4mpan2 707 . . . . . . 7 (𝑓 ⊆ (ℂ × (𝑋𝑌)) → 𝑓 ⊆ (ℂ × 𝑋))
65anim2i 592 . . . . . 6 ((Fun 𝑓𝑓 ⊆ (ℂ × (𝑋𝑌))) → (Fun 𝑓𝑓 ⊆ (ℂ × 𝑋)))
76a1i 11 . . . . 5 (𝐷 ∈ (∞Met‘𝑋) → ((Fun 𝑓𝑓 ⊆ (ℂ × (𝑋𝑌))) → (Fun 𝑓𝑓 ⊆ (ℂ × 𝑋))))
8 elfvdm 6258 . . . . . . 7 (𝐷 ∈ (∞Met‘𝑋) → 𝑋 ∈ dom ∞Met)
9 inex1g 4834 . . . . . . 7 (𝑋 ∈ dom ∞Met → (𝑋𝑌) ∈ V)
108, 9syl 17 . . . . . 6 (𝐷 ∈ (∞Met‘𝑋) → (𝑋𝑌) ∈ V)
11 cnex 10055 . . . . . 6 ℂ ∈ V
12 elpmg 7915 . . . . . 6 (((𝑋𝑌) ∈ V ∧ ℂ ∈ V) → (𝑓 ∈ ((𝑋𝑌) ↑pm ℂ) ↔ (Fun 𝑓𝑓 ⊆ (ℂ × (𝑋𝑌)))))
1310, 11, 12sylancl 695 . . . . 5 (𝐷 ∈ (∞Met‘𝑋) → (𝑓 ∈ ((𝑋𝑌) ↑pm ℂ) ↔ (Fun 𝑓𝑓 ⊆ (ℂ × (𝑋𝑌)))))
14 elpmg 7915 . . . . . 6 ((𝑋 ∈ dom ∞Met ∧ ℂ ∈ V) → (𝑓 ∈ (𝑋pm ℂ) ↔ (Fun 𝑓𝑓 ⊆ (ℂ × 𝑋))))
158, 11, 14sylancl 695 . . . . 5 (𝐷 ∈ (∞Met‘𝑋) → (𝑓 ∈ (𝑋pm ℂ) ↔ (Fun 𝑓𝑓 ⊆ (ℂ × 𝑋))))
167, 13, 153imtr4d 283 . . . 4 (𝐷 ∈ (∞Met‘𝑋) → (𝑓 ∈ ((𝑋𝑌) ↑pm ℂ) → 𝑓 ∈ (𝑋pm ℂ)))
17 uzid 11740 . . . . . . . . . 10 (𝑦 ∈ ℤ → 𝑦 ∈ (ℤ𝑦))
1817adantl 481 . . . . . . . . 9 ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) → 𝑦 ∈ (ℤ𝑦))
19 simp2 1082 . . . . . . . . . 10 ((𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → (𝑓𝑧) ∈ (𝑋𝑌))
2019ralimi 2981 . . . . . . . . 9 (∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ∀𝑧 ∈ (ℤ𝑦)(𝑓𝑧) ∈ (𝑋𝑌))
21 fveq2 6229 . . . . . . . . . . 11 (𝑧 = 𝑦 → (𝑓𝑧) = (𝑓𝑦))
2221eleq1d 2715 . . . . . . . . . 10 (𝑧 = 𝑦 → ((𝑓𝑧) ∈ (𝑋𝑌) ↔ (𝑓𝑦) ∈ (𝑋𝑌)))
2322rspcva 3338 . . . . . . . . 9 ((𝑦 ∈ (ℤ𝑦) ∧ ∀𝑧 ∈ (ℤ𝑦)(𝑓𝑧) ∈ (𝑋𝑌)) → (𝑓𝑦) ∈ (𝑋𝑌))
2418, 20, 23syl2an 493 . . . . . . . 8 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥)) → (𝑓𝑦) ∈ (𝑋𝑌))
25 inss2 3867 . . . . . . . . . . . . . 14 (𝑋𝑌) ⊆ 𝑌
26 simpr 476 . . . . . . . . . . . . . 14 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ (𝑋𝑌)) → (𝑓𝑦) ∈ (𝑋𝑌))
2725, 26sseldi 3634 . . . . . . . . . . . . 13 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ (𝑋𝑌)) → (𝑓𝑦) ∈ 𝑌)
2825a1i 11 . . . . . . . . . . . . . . . . . . 19 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) → (𝑋𝑌) ⊆ 𝑌)
2928sselda 3636 . . . . . . . . . . . . . . . . . 18 ((((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) ∧ (𝑓𝑧) ∈ (𝑋𝑌)) → (𝑓𝑧) ∈ 𝑌)
30 simplr 807 . . . . . . . . . . . . . . . . . 18 ((((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) ∧ (𝑓𝑧) ∈ (𝑋𝑌)) → (𝑓𝑦) ∈ 𝑌)
3129, 30ovresd 6843 . . . . . . . . . . . . . . . . 17 ((((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) ∧ (𝑓𝑧) ∈ (𝑋𝑌)) → ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) = ((𝑓𝑧)𝐷(𝑓𝑦)))
3231breq1d 4695 . . . . . . . . . . . . . . . 16 ((((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) ∧ (𝑓𝑧) ∈ (𝑋𝑌)) → (((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥 ↔ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥))
3332biimpd 219 . . . . . . . . . . . . . . 15 ((((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) ∧ (𝑓𝑧) ∈ (𝑋𝑌)) → (((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥 → ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥))
3433imdistanda 729 . . . . . . . . . . . . . 14 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) → (((𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ((𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
351a1i 11 . . . . . . . . . . . . . . . 16 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) → (𝑋𝑌) ⊆ 𝑋)
3635sseld 3635 . . . . . . . . . . . . . . 15 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) → ((𝑓𝑧) ∈ (𝑋𝑌) → (𝑓𝑧) ∈ 𝑋))
3736anim1d 587 . . . . . . . . . . . . . 14 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) → (((𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥) → ((𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
3834, 37syld 47 . . . . . . . . . . . . 13 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ 𝑌) → (((𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ((𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
3927, 38syldan 486 . . . . . . . . . . . 12 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ (𝑋𝑌)) → (((𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ((𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
4039anim2d 588 . . . . . . . . . . 11 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ (𝑋𝑌)) → ((𝑧 ∈ dom 𝑓 ∧ ((𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥)) → (𝑧 ∈ dom 𝑓 ∧ ((𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥))))
41 3anass 1059 . . . . . . . . . . 11 ((𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) ↔ (𝑧 ∈ dom 𝑓 ∧ ((𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥)))
42 3anass 1059 . . . . . . . . . . 11 ((𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥) ↔ (𝑧 ∈ dom 𝑓 ∧ ((𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
4340, 41, 423imtr4g 285 . . . . . . . . . 10 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ (𝑋𝑌)) → ((𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → (𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
4443ralimdv 2992 . . . . . . . . 9 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ (𝑓𝑦) ∈ (𝑋𝑌)) → (∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
4544impancom 455 . . . . . . . 8 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥)) → ((𝑓𝑦) ∈ (𝑋𝑌) → ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
4624, 45mpd 15 . . . . . . 7 (((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) ∧ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥)) → ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥))
4746ex 449 . . . . . 6 ((𝐷 ∈ (∞Met‘𝑋) ∧ 𝑦 ∈ ℤ) → (∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
4847reximdva 3046 . . . . 5 (𝐷 ∈ (∞Met‘𝑋) → (∃𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ∃𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
4948ralimdv 2992 . . . 4 (𝐷 ∈ (∞Met‘𝑋) → (∀𝑥 ∈ ℝ+𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥) → ∀𝑥 ∈ ℝ+𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥)))
5016, 49anim12d 585 . . 3 (𝐷 ∈ (∞Met‘𝑋) → ((𝑓 ∈ ((𝑋𝑌) ↑pm ℂ) ∧ ∀𝑥 ∈ ℝ+𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥)) → (𝑓 ∈ (𝑋pm ℂ) ∧ ∀𝑥 ∈ ℝ+𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥))))
51 xmetres 22216 . . . 4 (𝐷 ∈ (∞Met‘𝑋) → (𝐷 ↾ (𝑌 × 𝑌)) ∈ (∞Met‘(𝑋𝑌)))
52 iscau2 23121 . . . 4 ((𝐷 ↾ (𝑌 × 𝑌)) ∈ (∞Met‘(𝑋𝑌)) → (𝑓 ∈ (Cau‘(𝐷 ↾ (𝑌 × 𝑌))) ↔ (𝑓 ∈ ((𝑋𝑌) ↑pm ℂ) ∧ ∀𝑥 ∈ ℝ+𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥))))
5351, 52syl 17 . . 3 (𝐷 ∈ (∞Met‘𝑋) → (𝑓 ∈ (Cau‘(𝐷 ↾ (𝑌 × 𝑌))) ↔ (𝑓 ∈ ((𝑋𝑌) ↑pm ℂ) ∧ ∀𝑥 ∈ ℝ+𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ (𝑋𝑌) ∧ ((𝑓𝑧)(𝐷 ↾ (𝑌 × 𝑌))(𝑓𝑦)) < 𝑥))))
54 iscau2 23121 . . 3 (𝐷 ∈ (∞Met‘𝑋) → (𝑓 ∈ (Cau‘𝐷) ↔ (𝑓 ∈ (𝑋pm ℂ) ∧ ∀𝑥 ∈ ℝ+𝑦 ∈ ℤ ∀𝑧 ∈ (ℤ𝑦)(𝑧 ∈ dom 𝑓 ∧ (𝑓𝑧) ∈ 𝑋 ∧ ((𝑓𝑧)𝐷(𝑓𝑦)) < 𝑥))))
5550, 53, 543imtr4d 283 . 2 (𝐷 ∈ (∞Met‘𝑋) → (𝑓 ∈ (Cau‘(𝐷 ↾ (𝑌 × 𝑌))) → 𝑓 ∈ (Cau‘𝐷)))
5655ssrdv 3642 1 (𝐷 ∈ (∞Met‘𝑋) → (Cau‘(𝐷 ↾ (𝑌 × 𝑌))) ⊆ (Cau‘𝐷))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 383   ∧ w3a 1054   ∈ wcel 2030  ∀wral 2941  ∃wrex 2942  Vcvv 3231   ∩ cin 3606   ⊆ wss 3607   class class class wbr 4685   × cxp 5141  dom cdm 5143   ↾ cres 5145  Fun wfun 5920  ‘cfv 5926  (class class class)co 6690   ↑pm cpm 7900  ℂcc 9972   < clt 10112  ℤcz 11415  ℤ≥cuz 11725  ℝ+crp 11870  ∞Metcxmt 19779  Caucca 23097 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991  ax-cnex 10030  ax-resscn 10031  ax-1cn 10032  ax-icn 10033  ax-addcl 10034  ax-addrcl 10035  ax-mulcl 10036  ax-mulrcl 10037  ax-mulcom 10038  ax-addass 10039  ax-mulass 10040  ax-distr 10041  ax-i2m1 10042  ax-1ne0 10043  ax-1rid 10044  ax-rnegex 10045  ax-rrecex 10046  ax-cnre 10047  ax-pre-lttri 10048  ax-pre-lttrn 10049  ax-pre-ltadd 10050 This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-nel 2927  df-ral 2946  df-rex 2947  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-op 4217  df-uni 4469  df-iun 4554  df-br 4686  df-opab 4746  df-mpt 4763  df-id 5053  df-po 5064  df-so 5065  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-1st 7210  df-2nd 7211  df-er 7787  df-map 7901  df-pm 7902  df-en 7998  df-dom 7999  df-sdom 8000  df-pnf 10114  df-mnf 10115  df-xr 10116  df-ltxr 10117  df-le 10118  df-neg 10307  df-z 11416  df-uz 11726  df-rp 11871  df-xadd 11985  df-psmet 19786  df-xmet 19787  df-bl 19789  df-cau 23100 This theorem is referenced by: (None)
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