MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  txflf Structured version   Visualization version   GIF version

Theorem txflf 22617
Description: Two sequences converge in a filter iff the sequence of their ordered pairs converges. (Contributed by Mario Carneiro, 19-Sep-2015.)
Hypotheses
Ref Expression
txflf.j (𝜑𝐽 ∈ (TopOn‘𝑋))
txflf.k (𝜑𝐾 ∈ (TopOn‘𝑌))
txflf.l (𝜑𝐿 ∈ (Fil‘𝑍))
txflf.f (𝜑𝐹:𝑍𝑋)
txflf.g (𝜑𝐺:𝑍𝑌)
txflf.h 𝐻 = (𝑛𝑍 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩)
Assertion
Ref Expression
txflf (𝜑 → (⟨𝑅, 𝑆⟩ ∈ (((𝐽 ×t 𝐾) fLimf 𝐿)‘𝐻) ↔ (𝑅 ∈ ((𝐽 fLimf 𝐿)‘𝐹) ∧ 𝑆 ∈ ((𝐾 fLimf 𝐿)‘𝐺))))
Distinct variable groups:   𝜑,𝑛   𝑛,𝐹   𝑛,𝐺   𝑛,𝑍   𝑛,𝑋   𝑛,𝑌
Allowed substitution hints:   𝑅(𝑛)   𝑆(𝑛)   𝐻(𝑛)   𝐽(𝑛)   𝐾(𝑛)   𝐿(𝑛)

Proof of Theorem txflf
Dummy variables 𝑢 𝑣 𝑧 𝑓 𝑔 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 vex 3500 . . . . . . . 8 𝑢 ∈ V
2 vex 3500 . . . . . . . 8 𝑣 ∈ V
31, 2xpex 7479 . . . . . . 7 (𝑢 × 𝑣) ∈ V
43rgen2w 3154 . . . . . 6 𝑢𝐽𝑣𝐾 (𝑢 × 𝑣) ∈ V
5 eqid 2824 . . . . . . 7 (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣)) = (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))
6 eleq2 2904 . . . . . . . 8 (𝑧 = (𝑢 × 𝑣) → (⟨𝑅, 𝑆⟩ ∈ 𝑧 ↔ ⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣)))
7 sseq2 3996 . . . . . . . . 9 (𝑧 = (𝑢 × 𝑣) → ((𝐻) ⊆ 𝑧 ↔ (𝐻) ⊆ (𝑢 × 𝑣)))
87rexbidv 3300 . . . . . . . 8 (𝑧 = (𝑢 × 𝑣) → (∃𝐿 (𝐻) ⊆ 𝑧 ↔ ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)))
96, 8imbi12d 347 . . . . . . 7 (𝑧 = (𝑢 × 𝑣) → ((⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧) ↔ (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣))))
105, 9ralrnmpo 7292 . . . . . 6 (∀𝑢𝐽𝑣𝐾 (𝑢 × 𝑣) ∈ V → (∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧) ↔ ∀𝑢𝐽𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣))))
114, 10ax-mp 5 . . . . 5 (∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧) ↔ ∀𝑢𝐽𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)))
12 opelxp 5594 . . . . . . . . . . . . . . . 16 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) ↔ (𝑅𝑢𝑆𝑣))
1312biancomi 465 . . . . . . . . . . . . . . 15 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) ↔ (𝑆𝑣𝑅𝑢))
1413a1i 11 . . . . . . . . . . . . . 14 (𝜑 → (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) ↔ (𝑆𝑣𝑅𝑢)))
15 r19.40 3349 . . . . . . . . . . . . . . . . 17 (∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣) → (∃𝐿𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝐿𝑛 (𝐺𝑛) ∈ 𝑣))
16 raleq 3408 . . . . . . . . . . . . . . . . . . 19 ( = 𝑓 → (∀𝑛 (𝐹𝑛) ∈ 𝑢 ↔ ∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢))
1716cbvrexvw 3453 . . . . . . . . . . . . . . . . . 18 (∃𝐿𝑛 (𝐹𝑛) ∈ 𝑢 ↔ ∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢)
18 raleq 3408 . . . . . . . . . . . . . . . . . . 19 ( = 𝑔 → (∀𝑛 (𝐺𝑛) ∈ 𝑣 ↔ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣))
1918cbvrexvw 3453 . . . . . . . . . . . . . . . . . 18 (∃𝐿𝑛 (𝐺𝑛) ∈ 𝑣 ↔ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣)
2017, 19anbi12i 628 . . . . . . . . . . . . . . . . 17 ((∃𝐿𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝐿𝑛 (𝐺𝑛) ∈ 𝑣) ↔ (∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣))
2115, 20sylib 220 . . . . . . . . . . . . . . . 16 (∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣) → (∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣))
22 reeanv 3370 . . . . . . . . . . . . . . . . 17 (∃𝑓𝐿𝑔𝐿 (∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣) ↔ (∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣))
23 txflf.l . . . . . . . . . . . . . . . . . . . . 21 (𝜑𝐿 ∈ (Fil‘𝑍))
24 filin 22465 . . . . . . . . . . . . . . . . . . . . . 22 ((𝐿 ∈ (Fil‘𝑍) ∧ 𝑓𝐿𝑔𝐿) → (𝑓𝑔) ∈ 𝐿)
25243expb 1116 . . . . . . . . . . . . . . . . . . . . 21 ((𝐿 ∈ (Fil‘𝑍) ∧ (𝑓𝐿𝑔𝐿)) → (𝑓𝑔) ∈ 𝐿)
2623, 25sylan 582 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑓𝐿𝑔𝐿)) → (𝑓𝑔) ∈ 𝐿)
27 inss1 4208 . . . . . . . . . . . . . . . . . . . . . 22 (𝑓𝑔) ⊆ 𝑓
28 ssralv 4036 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑓𝑔) ⊆ 𝑓 → (∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢 → ∀𝑛 ∈ (𝑓𝑔)(𝐹𝑛) ∈ 𝑢))
2927, 28ax-mp 5 . . . . . . . . . . . . . . . . . . . . 21 (∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢 → ∀𝑛 ∈ (𝑓𝑔)(𝐹𝑛) ∈ 𝑢)
30 inss2 4209 . . . . . . . . . . . . . . . . . . . . . 22 (𝑓𝑔) ⊆ 𝑔
31 ssralv 4036 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑓𝑔) ⊆ 𝑔 → (∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣 → ∀𝑛 ∈ (𝑓𝑔)(𝐺𝑛) ∈ 𝑣))
3230, 31ax-mp 5 . . . . . . . . . . . . . . . . . . . . 21 (∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣 → ∀𝑛 ∈ (𝑓𝑔)(𝐺𝑛) ∈ 𝑣)
3329, 32anim12i 614 . . . . . . . . . . . . . . . . . . . 20 ((∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣) → (∀𝑛 ∈ (𝑓𝑔)(𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 ∈ (𝑓𝑔)(𝐺𝑛) ∈ 𝑣))
34 raleq 3408 . . . . . . . . . . . . . . . . . . . . . 22 ( = (𝑓𝑔) → (∀𝑛 (𝐹𝑛) ∈ 𝑢 ↔ ∀𝑛 ∈ (𝑓𝑔)(𝐹𝑛) ∈ 𝑢))
35 raleq 3408 . . . . . . . . . . . . . . . . . . . . . 22 ( = (𝑓𝑔) → (∀𝑛 (𝐺𝑛) ∈ 𝑣 ↔ ∀𝑛 ∈ (𝑓𝑔)(𝐺𝑛) ∈ 𝑣))
3634, 35anbi12d 632 . . . . . . . . . . . . . . . . . . . . 21 ( = (𝑓𝑔) → ((∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣) ↔ (∀𝑛 ∈ (𝑓𝑔)(𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 ∈ (𝑓𝑔)(𝐺𝑛) ∈ 𝑣)))
3736rspcev 3626 . . . . . . . . . . . . . . . . . . . 20 (((𝑓𝑔) ∈ 𝐿 ∧ (∀𝑛 ∈ (𝑓𝑔)(𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 ∈ (𝑓𝑔)(𝐺𝑛) ∈ 𝑣)) → ∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣))
3826, 33, 37syl2an 597 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑓𝐿𝑔𝐿)) ∧ (∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣)) → ∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣))
3938ex 415 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑓𝐿𝑔𝐿)) → ((∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣) → ∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣)))
4039rexlimdvva 3297 . . . . . . . . . . . . . . . . 17 (𝜑 → (∃𝑓𝐿𝑔𝐿 (∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣) → ∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣)))
4122, 40syl5bir 245 . . . . . . . . . . . . . . . 16 (𝜑 → ((∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣) → ∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣)))
4221, 41impbid2 228 . . . . . . . . . . . . . . 15 (𝜑 → (∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣) ↔ (∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣)))
43 df-ima 5571 . . . . . . . . . . . . . . . . . . 19 (𝐻) = ran (𝐻)
44 filelss 22463 . . . . . . . . . . . . . . . . . . . . . 22 ((𝐿 ∈ (Fil‘𝑍) ∧ 𝐿) → 𝑍)
4523, 44sylan 582 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑𝐿) → 𝑍)
46 txflf.h . . . . . . . . . . . . . . . . . . . . . . 23 𝐻 = (𝑛𝑍 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩)
4746reseq1i 5852 . . . . . . . . . . . . . . . . . . . . . 22 (𝐻) = ((𝑛𝑍 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) ↾ )
48 resmpt 5908 . . . . . . . . . . . . . . . . . . . . . 22 (𝑍 → ((𝑛𝑍 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) ↾ ) = (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩))
4947, 48syl5eq 2871 . . . . . . . . . . . . . . . . . . . . 21 (𝑍 → (𝐻) = (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩))
5045, 49syl 17 . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝐿) → (𝐻) = (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩))
5150rneqd 5811 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝐿) → ran (𝐻) = ran (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩))
5243, 51syl5eq 2871 . . . . . . . . . . . . . . . . . 18 ((𝜑𝐿) → (𝐻) = ran (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩))
5352sseq1d 4001 . . . . . . . . . . . . . . . . 17 ((𝜑𝐿) → ((𝐻) ⊆ (𝑢 × 𝑣) ↔ ran (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) ⊆ (𝑢 × 𝑣)))
54 opelxp 5594 . . . . . . . . . . . . . . . . . . 19 (⟨(𝐹𝑛), (𝐺𝑛)⟩ ∈ (𝑢 × 𝑣) ↔ ((𝐹𝑛) ∈ 𝑢 ∧ (𝐺𝑛) ∈ 𝑣))
5554ralbii 3168 . . . . . . . . . . . . . . . . . 18 (∀𝑛 ⟨(𝐹𝑛), (𝐺𝑛)⟩ ∈ (𝑢 × 𝑣) ↔ ∀𝑛 ((𝐹𝑛) ∈ 𝑢 ∧ (𝐺𝑛) ∈ 𝑣))
56 eqid 2824 . . . . . . . . . . . . . . . . . . . 20 (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) = (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩)
5756fmpt 6877 . . . . . . . . . . . . . . . . . . 19 (∀𝑛 ⟨(𝐹𝑛), (𝐺𝑛)⟩ ∈ (𝑢 × 𝑣) ↔ (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩):⟶(𝑢 × 𝑣))
58 opex 5359 . . . . . . . . . . . . . . . . . . . . 21 ⟨(𝐹𝑛), (𝐺𝑛)⟩ ∈ V
5958, 56fnmpti 6494 . . . . . . . . . . . . . . . . . . . 20 (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) Fn
60 df-f 6362 . . . . . . . . . . . . . . . . . . . 20 ((𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩):⟶(𝑢 × 𝑣) ↔ ((𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) Fn ∧ ran (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) ⊆ (𝑢 × 𝑣)))
6159, 60mpbiran 707 . . . . . . . . . . . . . . . . . . 19 ((𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩):⟶(𝑢 × 𝑣) ↔ ran (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) ⊆ (𝑢 × 𝑣))
6257, 61bitri 277 . . . . . . . . . . . . . . . . . 18 (∀𝑛 ⟨(𝐹𝑛), (𝐺𝑛)⟩ ∈ (𝑢 × 𝑣) ↔ ran (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) ⊆ (𝑢 × 𝑣))
63 r19.26 3173 . . . . . . . . . . . . . . . . . 18 (∀𝑛 ((𝐹𝑛) ∈ 𝑢 ∧ (𝐺𝑛) ∈ 𝑣) ↔ (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣))
6455, 62, 633bitr3i 303 . . . . . . . . . . . . . . . . 17 (ran (𝑛 ↦ ⟨(𝐹𝑛), (𝐺𝑛)⟩) ⊆ (𝑢 × 𝑣) ↔ (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣))
6553, 64syl6bb 289 . . . . . . . . . . . . . . . 16 ((𝜑𝐿) → ((𝐻) ⊆ (𝑢 × 𝑣) ↔ (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣)))
6665rexbidva 3299 . . . . . . . . . . . . . . 15 (𝜑 → (∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣) ↔ ∃𝐿 (∀𝑛 (𝐹𝑛) ∈ 𝑢 ∧ ∀𝑛 (𝐺𝑛) ∈ 𝑣)))
67 txflf.f . . . . . . . . . . . . . . . . . . . 20 (𝜑𝐹:𝑍𝑋)
6867adantr 483 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑓𝐿) → 𝐹:𝑍𝑋)
6968ffund 6521 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑓𝐿) → Fun 𝐹)
70 filelss 22463 . . . . . . . . . . . . . . . . . . . 20 ((𝐿 ∈ (Fil‘𝑍) ∧ 𝑓𝐿) → 𝑓𝑍)
7123, 70sylan 582 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑓𝐿) → 𝑓𝑍)
7268fdmd 6526 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑓𝐿) → dom 𝐹 = 𝑍)
7371, 72sseqtrrd 4011 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑓𝐿) → 𝑓 ⊆ dom 𝐹)
74 funimass4 6733 . . . . . . . . . . . . . . . . . 18 ((Fun 𝐹𝑓 ⊆ dom 𝐹) → ((𝐹𝑓) ⊆ 𝑢 ↔ ∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢))
7569, 73, 74syl2anc 586 . . . . . . . . . . . . . . . . 17 ((𝜑𝑓𝐿) → ((𝐹𝑓) ⊆ 𝑢 ↔ ∀𝑛𝑓 (𝐹𝑛) ∈ 𝑢))
7675rexbidva 3299 . . . . . . . . . . . . . . . 16 (𝜑 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ↔ ∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢))
77 txflf.g . . . . . . . . . . . . . . . . . . . 20 (𝜑𝐺:𝑍𝑌)
7877adantr 483 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑔𝐿) → 𝐺:𝑍𝑌)
7978ffund 6521 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑔𝐿) → Fun 𝐺)
80 filelss 22463 . . . . . . . . . . . . . . . . . . . 20 ((𝐿 ∈ (Fil‘𝑍) ∧ 𝑔𝐿) → 𝑔𝑍)
8123, 80sylan 582 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑔𝐿) → 𝑔𝑍)
8278fdmd 6526 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑔𝐿) → dom 𝐺 = 𝑍)
8381, 82sseqtrrd 4011 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑔𝐿) → 𝑔 ⊆ dom 𝐺)
84 funimass4 6733 . . . . . . . . . . . . . . . . . 18 ((Fun 𝐺𝑔 ⊆ dom 𝐺) → ((𝐺𝑔) ⊆ 𝑣 ↔ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣))
8579, 83, 84syl2anc 586 . . . . . . . . . . . . . . . . 17 ((𝜑𝑔𝐿) → ((𝐺𝑔) ⊆ 𝑣 ↔ ∀𝑛𝑔 (𝐺𝑛) ∈ 𝑣))
8685rexbidva 3299 . . . . . . . . . . . . . . . 16 (𝜑 → (∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣 ↔ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣))
8776, 86anbi12d 632 . . . . . . . . . . . . . . 15 (𝜑 → ((∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ (∃𝑓𝐿𝑛𝑓 (𝐹𝑛) ∈ 𝑢 ∧ ∃𝑔𝐿𝑛𝑔 (𝐺𝑛) ∈ 𝑣)))
8842, 66, 873bitr4d 313 . . . . . . . . . . . . . 14 (𝜑 → (∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣) ↔ (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
8914, 88imbi12d 347 . . . . . . . . . . . . 13 (𝜑 → ((⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ ((𝑆𝑣𝑅𝑢) → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
90 impexp 453 . . . . . . . . . . . . 13 (((𝑆𝑣𝑅𝑢) → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)) ↔ (𝑆𝑣 → (𝑅𝑢 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
9189, 90syl6bb 289 . . . . . . . . . . . 12 (𝜑 → ((⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ (𝑆𝑣 → (𝑅𝑢 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))))
9291ralbidv 3200 . . . . . . . . . . 11 (𝜑 → (∀𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ ∀𝑣𝐾 (𝑆𝑣 → (𝑅𝑢 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))))
93 eleq2 2904 . . . . . . . . . . . . 13 (𝑥 = 𝑣 → (𝑆𝑥𝑆𝑣))
9493ralrab 3688 . . . . . . . . . . . 12 (∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (𝑅𝑢 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)) ↔ ∀𝑣𝐾 (𝑆𝑣 → (𝑅𝑢 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
95 r19.21v 3178 . . . . . . . . . . . 12 (∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (𝑅𝑢 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)) ↔ (𝑅𝑢 → ∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
9694, 95bitr3i 279 . . . . . . . . . . 11 (∀𝑣𝐾 (𝑆𝑣 → (𝑅𝑢 → (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))) ↔ (𝑅𝑢 → ∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
9792, 96syl6bb 289 . . . . . . . . . 10 (𝜑 → (∀𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ (𝑅𝑢 → ∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
9897ralbidv 3200 . . . . . . . . 9 (𝜑 → (∀𝑢𝐽𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ ∀𝑢𝐽 (𝑅𝑢 → ∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
99 eleq2 2904 . . . . . . . . . 10 (𝑥 = 𝑢 → (𝑅𝑥𝑅𝑢))
10099ralrab 3688 . . . . . . . . 9 (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ ∀𝑢𝐽 (𝑅𝑢 → ∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
10198, 100syl6bbr 291 . . . . . . . 8 (𝜑 → (∀𝑢𝐽𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ ∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
102101adantr 483 . . . . . . 7 ((𝜑 ∧ (𝑅𝑋𝑆𝑌)) → (∀𝑢𝐽𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ ∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
103 txflf.j . . . . . . . . . . 11 (𝜑𝐽 ∈ (TopOn‘𝑋))
104 toponmax 21537 . . . . . . . . . . 11 (𝐽 ∈ (TopOn‘𝑋) → 𝑋𝐽)
105103, 104syl 17 . . . . . . . . . 10 (𝜑𝑋𝐽)
106 eleq2 2904 . . . . . . . . . . . 12 (𝑥 = 𝑋 → (𝑅𝑥𝑅𝑋))
107106rspcev 3626 . . . . . . . . . . 11 ((𝑋𝐽𝑅𝑋) → ∃𝑥𝐽 𝑅𝑥)
108 rabn0 4342 . . . . . . . . . . 11 ({𝑥𝐽𝑅𝑥} ≠ ∅ ↔ ∃𝑥𝐽 𝑅𝑥)
109107, 108sylibr 236 . . . . . . . . . 10 ((𝑋𝐽𝑅𝑋) → {𝑥𝐽𝑅𝑥} ≠ ∅)
110105, 109sylan 582 . . . . . . . . 9 ((𝜑𝑅𝑋) → {𝑥𝐽𝑅𝑥} ≠ ∅)
111 txflf.k . . . . . . . . . . 11 (𝜑𝐾 ∈ (TopOn‘𝑌))
112 toponmax 21537 . . . . . . . . . . 11 (𝐾 ∈ (TopOn‘𝑌) → 𝑌𝐾)
113111, 112syl 17 . . . . . . . . . 10 (𝜑𝑌𝐾)
114 eleq2 2904 . . . . . . . . . . . 12 (𝑥 = 𝑌 → (𝑆𝑥𝑆𝑌))
115114rspcev 3626 . . . . . . . . . . 11 ((𝑌𝐾𝑆𝑌) → ∃𝑥𝐾 𝑆𝑥)
116 rabn0 4342 . . . . . . . . . . 11 ({𝑥𝐾𝑆𝑥} ≠ ∅ ↔ ∃𝑥𝐾 𝑆𝑥)
117115, 116sylibr 236 . . . . . . . . . 10 ((𝑌𝐾𝑆𝑌) → {𝑥𝐾𝑆𝑥} ≠ ∅)
118113, 117sylan 582 . . . . . . . . 9 ((𝜑𝑆𝑌) → {𝑥𝐾𝑆𝑥} ≠ ∅)
119110, 118anim12dan 620 . . . . . . . 8 ((𝜑 ∧ (𝑅𝑋𝑆𝑌)) → ({𝑥𝐽𝑅𝑥} ≠ ∅ ∧ {𝑥𝐾𝑆𝑥} ≠ ∅))
120 r19.28zv 4449 . . . . . . . . . 10 ({𝑥𝐾𝑆𝑥} ≠ ∅ → (∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
121120ralbidv 3200 . . . . . . . . 9 ({𝑥𝐾𝑆𝑥} ≠ ∅ → (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ ∀𝑢 ∈ {𝑥𝐽𝑅𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
122 r19.27zv 4454 . . . . . . . . 9 ({𝑥𝐽𝑅𝑥} ≠ ∅ → (∀𝑢 ∈ {𝑥𝐽𝑅𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
123121, 122sylan9bbr 513 . . . . . . . 8 (({𝑥𝐽𝑅𝑥} ≠ ∅ ∧ {𝑥𝐾𝑆𝑥} ≠ ∅) → (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
124119, 123syl 17 . . . . . . 7 ((𝜑 ∧ (𝑅𝑋𝑆𝑌)) → (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∀𝑣 ∈ {𝑥𝐾𝑆𝑥} (∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
125102, 124bitrd 281 . . . . . 6 ((𝜑 ∧ (𝑅𝑋𝑆𝑌)) → (∀𝑢𝐽𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
12699ralrab 3688 . . . . . . 7 (∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ↔ ∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢))
12793ralrab 3688 . . . . . . 7 (∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣 ↔ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))
128126, 127anbi12i 628 . . . . . 6 ((∀𝑢 ∈ {𝑥𝐽𝑅𝑥}∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢 ∧ ∀𝑣 ∈ {𝑥𝐾𝑆𝑥}∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣) ↔ (∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢) ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))
129125, 128syl6bb 289 . . . . 5 ((𝜑 ∧ (𝑅𝑋𝑆𝑌)) → (∀𝑢𝐽𝑣𝐾 (⟨𝑅, 𝑆⟩ ∈ (𝑢 × 𝑣) → ∃𝐿 (𝐻) ⊆ (𝑢 × 𝑣)) ↔ (∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢) ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
13011, 129syl5bb 285 . . . 4 ((𝜑 ∧ (𝑅𝑋𝑆𝑌)) → (∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧) ↔ (∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢) ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
131130pm5.32da 581 . . 3 (𝜑 → (((𝑅𝑋𝑆𝑌) ∧ ∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧)) ↔ ((𝑅𝑋𝑆𝑌) ∧ (∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢) ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))))
132 opelxp 5594 . . . 4 (⟨𝑅, 𝑆⟩ ∈ (𝑋 × 𝑌) ↔ (𝑅𝑋𝑆𝑌))
133132anbi1i 625 . . 3 ((⟨𝑅, 𝑆⟩ ∈ (𝑋 × 𝑌) ∧ ∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧)) ↔ ((𝑅𝑋𝑆𝑌) ∧ ∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧)))
134 an4 654 . . 3 (((𝑅𝑋 ∧ ∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢)) ∧ (𝑆𝑌 ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))) ↔ ((𝑅𝑋𝑆𝑌) ∧ (∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢) ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
135131, 133, 1343bitr4g 316 . 2 (𝜑 → ((⟨𝑅, 𝑆⟩ ∈ (𝑋 × 𝑌) ∧ ∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧)) ↔ ((𝑅𝑋 ∧ ∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢)) ∧ (𝑆𝑌 ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))))
136 eqid 2824 . . . . . . . 8 ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣)) = ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))
137136txval 22175 . . . . . . 7 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐽 ×t 𝐾) = (topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))))
138103, 111, 137syl2anc 586 . . . . . 6 (𝜑 → (𝐽 ×t 𝐾) = (topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))))
139138oveq1d 7174 . . . . 5 (𝜑 → ((𝐽 ×t 𝐾) fLimf 𝐿) = ((topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) fLimf 𝐿))
140139fveq1d 6675 . . . 4 (𝜑 → (((𝐽 ×t 𝐾) fLimf 𝐿)‘𝐻) = (((topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) fLimf 𝐿)‘𝐻))
141140eleq2d 2901 . . 3 (𝜑 → (⟨𝑅, 𝑆⟩ ∈ (((𝐽 ×t 𝐾) fLimf 𝐿)‘𝐻) ↔ ⟨𝑅, 𝑆⟩ ∈ (((topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) fLimf 𝐿)‘𝐻)))
142 txtopon 22202 . . . . . 6 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌)) → (𝐽 ×t 𝐾) ∈ (TopOn‘(𝑋 × 𝑌)))
143103, 111, 142syl2anc 586 . . . . 5 (𝜑 → (𝐽 ×t 𝐾) ∈ (TopOn‘(𝑋 × 𝑌)))
144138, 143eqeltrrd 2917 . . . 4 (𝜑 → (topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) ∈ (TopOn‘(𝑋 × 𝑌)))
14567ffvelrnda 6854 . . . . . 6 ((𝜑𝑛𝑍) → (𝐹𝑛) ∈ 𝑋)
14677ffvelrnda 6854 . . . . . 6 ((𝜑𝑛𝑍) → (𝐺𝑛) ∈ 𝑌)
147145, 146opelxpd 5596 . . . . 5 ((𝜑𝑛𝑍) → ⟨(𝐹𝑛), (𝐺𝑛)⟩ ∈ (𝑋 × 𝑌))
148147, 46fmptd 6881 . . . 4 (𝜑𝐻:𝑍⟶(𝑋 × 𝑌))
149 eqid 2824 . . . . 5 (topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) = (topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣)))
150149flftg 22607 . . . 4 (((topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) ∈ (TopOn‘(𝑋 × 𝑌)) ∧ 𝐿 ∈ (Fil‘𝑍) ∧ 𝐻:𝑍⟶(𝑋 × 𝑌)) → (⟨𝑅, 𝑆⟩ ∈ (((topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) fLimf 𝐿)‘𝐻) ↔ (⟨𝑅, 𝑆⟩ ∈ (𝑋 × 𝑌) ∧ ∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧))))
151144, 23, 148, 150syl3anc 1367 . . 3 (𝜑 → (⟨𝑅, 𝑆⟩ ∈ (((topGen‘ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))) fLimf 𝐿)‘𝐻) ↔ (⟨𝑅, 𝑆⟩ ∈ (𝑋 × 𝑌) ∧ ∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧))))
152141, 151bitrd 281 . 2 (𝜑 → (⟨𝑅, 𝑆⟩ ∈ (((𝐽 ×t 𝐾) fLimf 𝐿)‘𝐻) ↔ (⟨𝑅, 𝑆⟩ ∈ (𝑋 × 𝑌) ∧ ∀𝑧 ∈ ran (𝑢𝐽, 𝑣𝐾 ↦ (𝑢 × 𝑣))(⟨𝑅, 𝑆⟩ ∈ 𝑧 → ∃𝐿 (𝐻) ⊆ 𝑧))))
153 isflf 22604 . . . 4 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐿 ∈ (Fil‘𝑍) ∧ 𝐹:𝑍𝑋) → (𝑅 ∈ ((𝐽 fLimf 𝐿)‘𝐹) ↔ (𝑅𝑋 ∧ ∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢))))
154103, 23, 67, 153syl3anc 1367 . . 3 (𝜑 → (𝑅 ∈ ((𝐽 fLimf 𝐿)‘𝐹) ↔ (𝑅𝑋 ∧ ∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢))))
155 isflf 22604 . . . 4 ((𝐾 ∈ (TopOn‘𝑌) ∧ 𝐿 ∈ (Fil‘𝑍) ∧ 𝐺:𝑍𝑌) → (𝑆 ∈ ((𝐾 fLimf 𝐿)‘𝐺) ↔ (𝑆𝑌 ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
156111, 23, 77, 155syl3anc 1367 . . 3 (𝜑 → (𝑆 ∈ ((𝐾 fLimf 𝐿)‘𝐺) ↔ (𝑆𝑌 ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣))))
157154, 156anbi12d 632 . 2 (𝜑 → ((𝑅 ∈ ((𝐽 fLimf 𝐿)‘𝐹) ∧ 𝑆 ∈ ((𝐾 fLimf 𝐿)‘𝐺)) ↔ ((𝑅𝑋 ∧ ∀𝑢𝐽 (𝑅𝑢 → ∃𝑓𝐿 (𝐹𝑓) ⊆ 𝑢)) ∧ (𝑆𝑌 ∧ ∀𝑣𝐾 (𝑆𝑣 → ∃𝑔𝐿 (𝐺𝑔) ⊆ 𝑣)))))
158135, 152, 1573bitr4d 313 1 (𝜑 → (⟨𝑅, 𝑆⟩ ∈ (((𝐽 ×t 𝐾) fLimf 𝐿)‘𝐻) ↔ (𝑅 ∈ ((𝐽 fLimf 𝐿)‘𝐹) ∧ 𝑆 ∈ ((𝐾 fLimf 𝐿)‘𝐺))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208  wa 398   = wceq 1536  wcel 2113  wne 3019  wral 3141  wrex 3142  {crab 3145  Vcvv 3497  cin 3938  wss 3939  c0 4294  cop 4576  cmpt 5149   × cxp 5556  dom cdm 5558  ran crn 5559  cres 5560  cima 5561  Fun wfun 6352   Fn wfn 6353  wf 6354  cfv 6358  (class class class)co 7159  cmpo 7161  topGenctg 16714  TopOnctopon 21521   ×t ctx 22171  Filcfil 22456   fLimf cflf 22546
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 1969  ax-7 2014  ax-8 2115  ax-9 2123  ax-10 2144  ax-11 2160  ax-12 2176  ax-ext 2796  ax-rep 5193  ax-sep 5206  ax-nul 5213  ax-pow 5269  ax-pr 5333  ax-un 7464
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1539  df-ex 1780  df-nf 1784  df-sb 2069  df-mo 2621  df-eu 2653  df-clab 2803  df-cleq 2817  df-clel 2896  df-nfc 2966  df-ne 3020  df-nel 3127  df-ral 3146  df-rex 3147  df-reu 3148  df-rab 3150  df-v 3499  df-sbc 3776  df-csb 3887  df-dif 3942  df-un 3944  df-in 3946  df-ss 3955  df-nul 4295  df-if 4471  df-pw 4544  df-sn 4571  df-pr 4573  df-op 4577  df-uni 4842  df-iun 4924  df-br 5070  df-opab 5132  df-mpt 5150  df-id 5463  df-xp 5564  df-rel 5565  df-cnv 5566  df-co 5567  df-dm 5568  df-rn 5569  df-res 5570  df-ima 5571  df-iota 6317  df-fun 6360  df-fn 6361  df-f 6362  df-f1 6363  df-fo 6364  df-f1o 6365  df-fv 6366  df-ov 7162  df-oprab 7163  df-mpo 7164  df-1st 7692  df-2nd 7693  df-map 8411  df-topgen 16720  df-fbas 20545  df-fg 20546  df-top 21505  df-topon 21522  df-bases 21557  df-ntr 21631  df-nei 21709  df-tx 22173  df-fil 22457  df-fm 22549  df-flim 22550  df-flf 22551
This theorem is referenced by:  flfcnp2  22618
  Copyright terms: Public domain W3C validator