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Theorem neicvgel1 44873
Description: A subset being an element of a neighborhood of a point is equivalent to the complement of that subset not being a element of the convergent of that point. (Contributed by RP, 12-Jun-2021.)
Hypotheses
Ref Expression
neicvg.o 𝑂 = (𝑖 ∈ V, 𝑗 ∈ V ↦ (𝑘 ∈ (𝒫 𝑗m 𝑖) ↦ (𝑙𝑗 ↦ {𝑚𝑖𝑙 ∈ (𝑘𝑚)})))
neicvg.p 𝑃 = (𝑛 ∈ V ↦ (𝑝 ∈ (𝒫 𝑛m 𝒫 𝑛) ↦ (𝑜 ∈ 𝒫 𝑛 ↦ (𝑛 ∖ (𝑝‘(𝑛𝑜))))))
neicvg.d 𝐷 = (𝑃𝐵)
neicvg.f 𝐹 = (𝒫 𝐵𝑂𝐵)
neicvg.g 𝐺 = (𝐵𝑂𝒫 𝐵)
neicvg.h 𝐻 = (𝐹 ∘ (𝐷𝐺))
neicvg.r (𝜑𝑁𝐻𝑀)
neicvgel.x (𝜑𝑋𝐵)
neicvgel.s (𝜑𝑆 ∈ 𝒫 𝐵)
Assertion
Ref Expression
neicvgel1 (𝜑 → (𝑆 ∈ (𝑁𝑋) ↔ ¬ (𝐵𝑆) ∈ (𝑀𝑋)))
Distinct variable groups:   𝐵,𝑖,𝑗,𝑘,𝑙,𝑚   𝐵,𝑛,𝑜,𝑝   𝐷,𝑖,𝑗,𝑘,𝑙,𝑚   𝐷,𝑛,𝑜,𝑝   𝑖,𝐹,𝑗,𝑘,𝑙   𝑛,𝐹,𝑜,𝑝   𝑖,𝐺,𝑗,𝑘,𝑙,𝑚   𝑛,𝐺,𝑜,𝑝   𝑖,𝑀,𝑗,𝑘,𝑙   𝑛,𝑀,𝑜,𝑝   𝑖,𝑁,𝑗,𝑘,𝑙,𝑚   𝑛,𝑁,𝑜,𝑝   𝑆,𝑚   𝑆,𝑜   𝑋,𝑙,𝑚   𝜑,𝑖,𝑗,𝑘,𝑙   𝜑,𝑛,𝑜,𝑝
Allowed substitution hints:   𝜑(𝑚)   𝑃(𝑖, 𝑗, 𝑘, 𝑚, 𝑛, 𝑜, 𝑝, 𝑙)   𝑆(𝑖, 𝑗, 𝑘, 𝑛, 𝑝, 𝑙)   𝐹(𝑚)   𝐻(𝑖, 𝑗, 𝑘, 𝑚, 𝑛, 𝑜, 𝑝, 𝑙)   𝑀(𝑚)   𝑂(𝑖, 𝑗, 𝑘, 𝑚, 𝑛, 𝑜, 𝑝, 𝑙)   𝑋(𝑖, 𝑗, 𝑘, 𝑛, 𝑜, 𝑝)

Proof of Theorem neicvgel1
StepHypRef Expression
1 neicvg.d . . . 4 𝐷 = (𝑃𝐵)
2 neicvg.h . . . 4 𝐻 = (𝐹 ∘ (𝐷𝐺))
3 neicvg.r . . . 4 (𝜑𝑁𝐻𝑀)
41, 2, 3neicvgbex 44866 . . 3 (𝜑𝐵 ∈ V)
5 neicvg.o . . . . . 6 𝑂 = (𝑖 ∈ V, 𝑗 ∈ V ↦ (𝑘 ∈ (𝒫 𝑗m 𝑖) ↦ (𝑙𝑗 ↦ {𝑚𝑖𝑙 ∈ (𝑘𝑚)})))
6 simpr 489 . . . . . . 7 ((𝜑𝐵 ∈ V) → 𝐵 ∈ V)
76pwexd 5350 . . . . . 6 ((𝜑𝐵 ∈ V) → 𝒫 𝐵 ∈ V)
8 neicvg.f . . . . . 6 𝐹 = (𝒫 𝐵𝑂𝐵)
95, 7, 6, 8fsovf1od 44770 . . . . 5 ((𝜑𝐵 ∈ V) → 𝐹:(𝒫 𝐵m 𝒫 𝐵)–1-1-onto→(𝒫 𝒫 𝐵m 𝐵))
10 f1ofn 6821 . . . . 5 (𝐹:(𝒫 𝐵m 𝒫 𝐵)–1-1-onto→(𝒫 𝒫 𝐵m 𝐵) → 𝐹 Fn (𝒫 𝐵m 𝒫 𝐵))
119, 10syl 18 . . . 4 ((𝜑𝐵 ∈ V) → 𝐹 Fn (𝒫 𝐵m 𝒫 𝐵))
12 neicvg.p . . . . . 6 𝑃 = (𝑛 ∈ V ↦ (𝑝 ∈ (𝒫 𝑛m 𝒫 𝑛) ↦ (𝑜 ∈ 𝒫 𝑛 ↦ (𝑛 ∖ (𝑝‘(𝑛𝑜))))))
1312, 1, 6dssmapf1od 44775 . . . . 5 ((𝜑𝐵 ∈ V) → 𝐷:(𝒫 𝐵m 𝒫 𝐵)–1-1-onto→(𝒫 𝐵m 𝒫 𝐵))
14 f1of 6820 . . . . 5 (𝐷:(𝒫 𝐵m 𝒫 𝐵)–1-1-onto→(𝒫 𝐵m 𝒫 𝐵) → 𝐷:(𝒫 𝐵m 𝒫 𝐵)⟶(𝒫 𝐵m 𝒫 𝐵))
1513, 14syl 18 . . . 4 ((𝜑𝐵 ∈ V) → 𝐷:(𝒫 𝐵m 𝒫 𝐵)⟶(𝒫 𝐵m 𝒫 𝐵))
16 neicvg.g . . . . 5 𝐺 = (𝐵𝑂𝒫 𝐵)
175, 6, 7, 16fsovfd 44766 . . . 4 ((𝜑𝐵 ∈ V) → 𝐺:(𝒫 𝒫 𝐵m 𝐵)⟶(𝒫 𝐵m 𝒫 𝐵))
182breqi 5115 . . . . . 6 (𝑁𝐻𝑀𝑁(𝐹 ∘ (𝐷𝐺))𝑀)
193, 18sylib 221 . . . . 5 (𝜑𝑁(𝐹 ∘ (𝐷𝐺))𝑀)
2019adantr 485 . . . 4 ((𝜑𝐵 ∈ V) → 𝑁(𝐹 ∘ (𝐷𝐺))𝑀)
2111, 15, 17, 20brcofffn 44785 . . 3 ((𝜑𝐵 ∈ V) → (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀))
224, 21mpdan 699 . 2 (𝜑 → (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀))
23 simpr2 1214 . . . 4 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)))
24 neicvgel.x . . . . 5 (𝜑𝑋𝐵)
2524adantr 485 . . . 4 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → 𝑋𝐵)
26 neicvgel.s . . . . 5 (𝜑𝑆 ∈ 𝒫 𝐵)
2726adantr 485 . . . 4 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → 𝑆 ∈ 𝒫 𝐵)
2812, 1, 23, 25, 27ntrclselnel1 44811 . . 3 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝑋 ∈ ((𝐺𝑁)‘𝑆) ↔ ¬ 𝑋 ∈ ((𝐷‘(𝐺𝑁))‘(𝐵𝑆))))
29 eqid 2763 . . . 4 (𝒫 𝐵𝑂𝐵) = (𝒫 𝐵𝑂𝐵)
30 simpr1 1213 . . . . 5 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → 𝑁𝐺(𝐺𝑁))
3116breqi 5115 . . . . . . 7 (𝑁𝐺(𝐺𝑁) ↔ 𝑁(𝐵𝑂𝒫 𝐵)(𝐺𝑁))
3231a1i 11 . . . . . 6 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝑁𝐺(𝐺𝑁) ↔ 𝑁(𝐵𝑂𝒫 𝐵)(𝐺𝑁)))
334adantr 485 . . . . . . 7 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → 𝐵 ∈ V)
34 id 23 . . . . . . . 8 (𝐵 ∈ V → 𝐵 ∈ V)
35 pwexg 5349 . . . . . . . 8 (𝐵 ∈ V → 𝒫 𝐵 ∈ V)
36 eqid 2763 . . . . . . . 8 (𝐵𝑂𝒫 𝐵) = (𝐵𝑂𝒫 𝐵)
375, 34, 35, 36fsovf1od 44770 . . . . . . 7 (𝐵 ∈ V → (𝐵𝑂𝒫 𝐵):(𝒫 𝒫 𝐵m 𝐵)–1-1-onto→(𝒫 𝐵m 𝒫 𝐵))
38 f1orel 6823 . . . . . . 7 ((𝐵𝑂𝒫 𝐵):(𝒫 𝒫 𝐵m 𝐵)–1-1-onto→(𝒫 𝐵m 𝒫 𝐵) → Rel (𝐵𝑂𝒫 𝐵))
39 relbrcnvg 6107 . . . . . . 7 (Rel (𝐵𝑂𝒫 𝐵) → ((𝐺𝑁)(𝐵𝑂𝒫 𝐵)𝑁𝑁(𝐵𝑂𝒫 𝐵)(𝐺𝑁)))
4033, 37, 38, 394syl 20 . . . . . 6 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → ((𝐺𝑁)(𝐵𝑂𝒫 𝐵)𝑁𝑁(𝐵𝑂𝒫 𝐵)(𝐺𝑁)))
415, 34, 35, 36, 29fsovcnvd 44768 . . . . . . . 8 (𝐵 ∈ V → (𝐵𝑂𝒫 𝐵) = (𝒫 𝐵𝑂𝐵))
4241breqd 5120 . . . . . . 7 (𝐵 ∈ V → ((𝐺𝑁)(𝐵𝑂𝒫 𝐵)𝑁 ↔ (𝐺𝑁)(𝒫 𝐵𝑂𝐵)𝑁))
4333, 42syl 18 . . . . . 6 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → ((𝐺𝑁)(𝐵𝑂𝒫 𝐵)𝑁 ↔ (𝐺𝑁)(𝒫 𝐵𝑂𝐵)𝑁))
4432, 40, 433bitr2d 310 . . . . 5 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝑁𝐺(𝐺𝑁) ↔ (𝐺𝑁)(𝒫 𝐵𝑂𝐵)𝑁))
4530, 44mpbid 235 . . . 4 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝐺𝑁)(𝒫 𝐵𝑂𝐵)𝑁)
465, 29, 45, 25, 27ntrneiel 44835 . . 3 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝑋 ∈ ((𝐺𝑁)‘𝑆) ↔ 𝑆 ∈ (𝑁𝑋)))
47 simpr3 1215 . . . . 5 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝐷‘(𝐺𝑁))𝐹𝑀)
48 difssd 4091 . . . . . . 7 (𝜑 → (𝐵𝑆) ⊆ 𝐵)
494, 48sselpwd 5299 . . . . . 6 (𝜑 → (𝐵𝑆) ∈ 𝒫 𝐵)
5049adantr 485 . . . . 5 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝐵𝑆) ∈ 𝒫 𝐵)
515, 8, 47, 25, 50ntrneiel 44835 . . . 4 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝑋 ∈ ((𝐷‘(𝐺𝑁))‘(𝐵𝑆)) ↔ (𝐵𝑆) ∈ (𝑀𝑋)))
5251notbid 321 . . 3 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (¬ 𝑋 ∈ ((𝐷‘(𝐺𝑁))‘(𝐵𝑆)) ↔ ¬ (𝐵𝑆) ∈ (𝑀𝑋)))
5328, 46, 523bitr3d 312 . 2 ((𝜑 ∧ (𝑁𝐺(𝐺𝑁) ∧ (𝐺𝑁)𝐷(𝐷‘(𝐺𝑁)) ∧ (𝐷‘(𝐺𝑁))𝐹𝑀)) → (𝑆 ∈ (𝑁𝑋) ↔ ¬ (𝐵𝑆) ∈ (𝑀𝑋)))
5422, 53mpdan 699 1 (𝜑 → (𝑆 ∈ (𝑁𝑋) ↔ ¬ (𝐵𝑆) ∈ (𝑀𝑋)))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  ¬ wn 3  wi 4  wb 209  wa 400  w3a 1103   = wceq 1570  wcel 2143  {crab 3416  Vcvv 3455  cdif 3902  𝒫 cpw 4562   class class class wbr 5109  cmpt 5192  ccnv 5660  ccom 5665  Rel wrel 5666   Fn wfn 6531  wf 6532  1-1-ontowf1o 6535  cfv 6536  (class class class)co 7410  cmpo 7412  m cmap 8820
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-rep 5238  ax-sep 5257  ax-nul 5269  ax-pow 5336  ax-pr 5404  ax-un 7732
This proof depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-ral 3080  df-rex 3090  df-reu 3370  df-rab 3417  df-v 3457  df-sbc 3745  df-csb 3854  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-pw 4564  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-iun 4958  df-br 5110  df-opab 5174  df-mpt 5193  df-id 5556  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-res 5673  df-ima 5674  df-iota 6492  df-fun 6538  df-fn 6539  df-f 6540  df-f1 6541  df-fo 6542  df-f1o 6543  df-fv 6544  df-ov 7413  df-oprab 7414  df-mpo 7415  df-1st 7982  df-2nd 7983  df-map 8822
This theorem is used by:  neicvgel2  44874  neicvgfv  44875
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