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Theorem rnelfm 22564
Description: A condition for a filter to be an image filter for a given function. (Contributed by Jeff Hankins, 14-Nov-2009.) (Revised by Stefan O'Rear, 8-Aug-2015.)
Assertion
Ref Expression
rnelfm ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝐿 ∈ ran (𝑋 FilMap 𝐹) ↔ ran 𝐹𝐿))

Proof of Theorem rnelfm
Dummy variables 𝑏 𝑠 𝑡 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 filtop 22466 . . . . . . 7 (𝐿 ∈ (Fil‘𝑋) → 𝑋𝐿)
213ad2ant2 1131 . . . . . 6 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → 𝑋𝐿)
3 simp1 1133 . . . . . 6 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → 𝑌𝐴)
4 simp3 1135 . . . . . 6 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → 𝐹:𝑌𝑋)
5 fmf 22556 . . . . . 6 ((𝑋𝐿𝑌𝐴𝐹:𝑌𝑋) → (𝑋 FilMap 𝐹):(fBas‘𝑌)⟶(Fil‘𝑋))
62, 3, 4, 5syl3anc 1368 . . . . 5 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝑋 FilMap 𝐹):(fBas‘𝑌)⟶(Fil‘𝑋))
76ffnd 6504 . . . 4 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝑋 FilMap 𝐹) Fn (fBas‘𝑌))
8 fvelrnb 6717 . . . 4 ((𝑋 FilMap 𝐹) Fn (fBas‘𝑌) → (𝐿 ∈ ran (𝑋 FilMap 𝐹) ↔ ∃𝑏 ∈ (fBas‘𝑌)((𝑋 FilMap 𝐹)‘𝑏) = 𝐿))
97, 8syl 17 . . 3 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝐿 ∈ ran (𝑋 FilMap 𝐹) ↔ ∃𝑏 ∈ (fBas‘𝑌)((𝑋 FilMap 𝐹)‘𝑏) = 𝐿))
10 ffn 6503 . . . . . . . . . . . 12 (𝐹:𝑌𝑋𝐹 Fn 𝑌)
11 dffn4 6587 . . . . . . . . . . . 12 (𝐹 Fn 𝑌𝐹:𝑌onto→ran 𝐹)
1210, 11sylib 221 . . . . . . . . . . 11 (𝐹:𝑌𝑋𝐹:𝑌onto→ran 𝐹)
13 foima 6586 . . . . . . . . . . 11 (𝐹:𝑌onto→ran 𝐹 → (𝐹𝑌) = ran 𝐹)
1412, 13syl 17 . . . . . . . . . 10 (𝐹:𝑌𝑋 → (𝐹𝑌) = ran 𝐹)
1514ad2antlr 726 . . . . . . . . 9 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → (𝐹𝑌) = ran 𝐹)
16 simpll 766 . . . . . . . . . 10 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → 𝑋𝐿)
17 simpr 488 . . . . . . . . . 10 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → 𝑏 ∈ (fBas‘𝑌))
18 simplr 768 . . . . . . . . . 10 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → 𝐹:𝑌𝑋)
19 fgcl 22489 . . . . . . . . . . . 12 (𝑏 ∈ (fBas‘𝑌) → (𝑌filGen𝑏) ∈ (Fil‘𝑌))
20 filtop 22466 . . . . . . . . . . . 12 ((𝑌filGen𝑏) ∈ (Fil‘𝑌) → 𝑌 ∈ (𝑌filGen𝑏))
2119, 20syl 17 . . . . . . . . . . 11 (𝑏 ∈ (fBas‘𝑌) → 𝑌 ∈ (𝑌filGen𝑏))
2221adantl 485 . . . . . . . . . 10 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → 𝑌 ∈ (𝑌filGen𝑏))
23 eqid 2824 . . . . . . . . . . 11 (𝑌filGen𝑏) = (𝑌filGen𝑏)
2423imaelfm 22562 . . . . . . . . . 10 (((𝑋𝐿𝑏 ∈ (fBas‘𝑌) ∧ 𝐹:𝑌𝑋) ∧ 𝑌 ∈ (𝑌filGen𝑏)) → (𝐹𝑌) ∈ ((𝑋 FilMap 𝐹)‘𝑏))
2516, 17, 18, 22, 24syl31anc 1370 . . . . . . . . 9 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → (𝐹𝑌) ∈ ((𝑋 FilMap 𝐹)‘𝑏))
2615, 25eqeltrrd 2917 . . . . . . . 8 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → ran 𝐹 ∈ ((𝑋 FilMap 𝐹)‘𝑏))
27 eleq2 2904 . . . . . . . 8 (((𝑋 FilMap 𝐹)‘𝑏) = 𝐿 → (ran 𝐹 ∈ ((𝑋 FilMap 𝐹)‘𝑏) ↔ ran 𝐹𝐿))
2826, 27syl5ibcom 248 . . . . . . 7 (((𝑋𝐿𝐹:𝑌𝑋) ∧ 𝑏 ∈ (fBas‘𝑌)) → (((𝑋 FilMap 𝐹)‘𝑏) = 𝐿 → ran 𝐹𝐿))
2928ex 416 . . . . . 6 ((𝑋𝐿𝐹:𝑌𝑋) → (𝑏 ∈ (fBas‘𝑌) → (((𝑋 FilMap 𝐹)‘𝑏) = 𝐿 → ran 𝐹𝐿)))
301, 29sylan 583 . . . . 5 ((𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝑏 ∈ (fBas‘𝑌) → (((𝑋 FilMap 𝐹)‘𝑏) = 𝐿 → ran 𝐹𝐿)))
31303adant1 1127 . . . 4 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝑏 ∈ (fBas‘𝑌) → (((𝑋 FilMap 𝐹)‘𝑏) = 𝐿 → ran 𝐹𝐿)))
3231rexlimdv 3275 . . 3 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (∃𝑏 ∈ (fBas‘𝑌)((𝑋 FilMap 𝐹)‘𝑏) = 𝐿 → ran 𝐹𝐿))
339, 32sylbid 243 . 2 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝐿 ∈ ran (𝑋 FilMap 𝐹) → ran 𝐹𝐿))
34 simpl2 1189 . . . . . . . . 9 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → 𝐿 ∈ (Fil‘𝑋))
35 filelss 22463 . . . . . . . . . 10 ((𝐿 ∈ (Fil‘𝑋) ∧ 𝑡𝐿) → 𝑡𝑋)
3635ex 416 . . . . . . . . 9 (𝐿 ∈ (Fil‘𝑋) → (𝑡𝐿𝑡𝑋))
3734, 36syl 17 . . . . . . . 8 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑡𝐿𝑡𝑋))
38 simpr 488 . . . . . . . . . . . 12 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → 𝑡𝐿)
39 eqidd 2825 . . . . . . . . . . . 12 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → (𝐹𝑡) = (𝐹𝑡))
40 imaeq2 5912 . . . . . . . . . . . . 13 (𝑥 = 𝑡 → (𝐹𝑥) = (𝐹𝑡))
4140rspceeqv 3624 . . . . . . . . . . . 12 ((𝑡𝐿 ∧ (𝐹𝑡) = (𝐹𝑡)) → ∃𝑥𝐿 (𝐹𝑡) = (𝐹𝑥))
4238, 39, 41syl2anc 587 . . . . . . . . . . 11 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → ∃𝑥𝐿 (𝐹𝑡) = (𝐹𝑥))
43 simpl1 1188 . . . . . . . . . . . . . 14 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → 𝑌𝐴)
44 cnvimass 5936 . . . . . . . . . . . . . . . . 17 (𝐹𝑡) ⊆ dom 𝐹
45 fdm 6511 . . . . . . . . . . . . . . . . 17 (𝐹:𝑌𝑋 → dom 𝐹 = 𝑌)
4644, 45sseqtrid 4005 . . . . . . . . . . . . . . . 16 (𝐹:𝑌𝑋 → (𝐹𝑡) ⊆ 𝑌)
47463ad2ant3 1132 . . . . . . . . . . . . . . 15 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝐹𝑡) ⊆ 𝑌)
4847adantr 484 . . . . . . . . . . . . . 14 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝐹𝑡) ⊆ 𝑌)
4943, 48ssexd 5214 . . . . . . . . . . . . 13 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝐹𝑡) ∈ V)
50 eqid 2824 . . . . . . . . . . . . . 14 (𝑥𝐿 ↦ (𝐹𝑥)) = (𝑥𝐿 ↦ (𝐹𝑥))
5150elrnmpt 5815 . . . . . . . . . . . . 13 ((𝐹𝑡) ∈ V → ((𝐹𝑡) ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ↔ ∃𝑥𝐿 (𝐹𝑡) = (𝐹𝑥)))
5249, 51syl 17 . . . . . . . . . . . 12 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → ((𝐹𝑡) ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ↔ ∃𝑥𝐿 (𝐹𝑡) = (𝐹𝑥)))
5352adantr 484 . . . . . . . . . . 11 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → ((𝐹𝑡) ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ↔ ∃𝑥𝐿 (𝐹𝑡) = (𝐹𝑥)))
5442, 53mpbird 260 . . . . . . . . . 10 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → (𝐹𝑡) ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)))
55 ssid 3975 . . . . . . . . . . 11 (𝐹𝑡) ⊆ (𝐹𝑡)
56 ffun 6506 . . . . . . . . . . . . . 14 (𝐹:𝑌𝑋 → Fun 𝐹)
57563ad2ant3 1132 . . . . . . . . . . . . 13 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → Fun 𝐹)
5857ad2antrr 725 . . . . . . . . . . . 12 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → Fun 𝐹)
59 funimass3 6815 . . . . . . . . . . . 12 ((Fun 𝐹 ∧ (𝐹𝑡) ⊆ dom 𝐹) → ((𝐹 “ (𝐹𝑡)) ⊆ 𝑡 ↔ (𝐹𝑡) ⊆ (𝐹𝑡)))
6058, 44, 59sylancl 589 . . . . . . . . . . 11 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → ((𝐹 “ (𝐹𝑡)) ⊆ 𝑡 ↔ (𝐹𝑡) ⊆ (𝐹𝑡)))
6155, 60mpbiri 261 . . . . . . . . . 10 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → (𝐹 “ (𝐹𝑡)) ⊆ 𝑡)
62 imaeq2 5912 . . . . . . . . . . . 12 (𝑠 = (𝐹𝑡) → (𝐹𝑠) = (𝐹 “ (𝐹𝑡)))
6362sseq1d 3984 . . . . . . . . . . 11 (𝑠 = (𝐹𝑡) → ((𝐹𝑠) ⊆ 𝑡 ↔ (𝐹 “ (𝐹𝑡)) ⊆ 𝑡))
6463rspcev 3609 . . . . . . . . . 10 (((𝐹𝑡) ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∧ (𝐹 “ (𝐹𝑡)) ⊆ 𝑡) → ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡)
6554, 61, 64syl2anc 587 . . . . . . . . 9 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑡𝐿) → ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡)
6665ex 416 . . . . . . . 8 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑡𝐿 → ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡))
6737, 66jcad 516 . . . . . . 7 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑡𝐿 → (𝑡𝑋 ∧ ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡)))
6834adantr 484 . . . . . . . . . . 11 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ ((𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∧ (𝐹𝑠) ⊆ 𝑡) ∧ 𝑡𝑋)) → 𝐿 ∈ (Fil‘𝑋))
6950elrnmpt 5815 . . . . . . . . . . . . . 14 (𝑠 ∈ V → (𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ↔ ∃𝑥𝐿 𝑠 = (𝐹𝑥)))
7069elv 3485 . . . . . . . . . . . . 13 (𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ↔ ∃𝑥𝐿 𝑠 = (𝐹𝑥))
71 ssid 3975 . . . . . . . . . . . . . . . . . . . 20 (𝐹𝑥) ⊆ (𝐹𝑥)
7257ad3antrrr 729 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → Fun 𝐹)
73 cnvimass 5936 . . . . . . . . . . . . . . . . . . . . 21 (𝐹𝑥) ⊆ dom 𝐹
74 funimass3 6815 . . . . . . . . . . . . . . . . . . . . 21 ((Fun 𝐹 ∧ (𝐹𝑥) ⊆ dom 𝐹) → ((𝐹 “ (𝐹𝑥)) ⊆ 𝑥 ↔ (𝐹𝑥) ⊆ (𝐹𝑥)))
7572, 73, 74sylancl 589 . . . . . . . . . . . . . . . . . . . 20 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → ((𝐹 “ (𝐹𝑥)) ⊆ 𝑥 ↔ (𝐹𝑥) ⊆ (𝐹𝑥)))
7671, 75mpbiri 261 . . . . . . . . . . . . . . . . . . 19 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝐹 “ (𝐹𝑥)) ⊆ 𝑥)
77 imassrn 5927 . . . . . . . . . . . . . . . . . . 19 (𝐹 “ (𝐹𝑥)) ⊆ ran 𝐹
78 ssin 4192 . . . . . . . . . . . . . . . . . . 19 (((𝐹 “ (𝐹𝑥)) ⊆ 𝑥 ∧ (𝐹 “ (𝐹𝑥)) ⊆ ran 𝐹) ↔ (𝐹 “ (𝐹𝑥)) ⊆ (𝑥 ∩ ran 𝐹))
7976, 77, 78sylanblc 592 . . . . . . . . . . . . . . . . . 18 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝐹 “ (𝐹𝑥)) ⊆ (𝑥 ∩ ran 𝐹))
80 elin 3935 . . . . . . . . . . . . . . . . . . . 20 (𝑧 ∈ (𝑥 ∩ ran 𝐹) ↔ (𝑧𝑥𝑧 ∈ ran 𝐹))
81 fvelrnb 6717 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝐹 Fn 𝑌 → (𝑧 ∈ ran 𝐹 ↔ ∃𝑦𝑌 (𝐹𝑦) = 𝑧))
8210, 81syl 17 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝐹:𝑌𝑋 → (𝑧 ∈ ran 𝐹 ↔ ∃𝑦𝑌 (𝐹𝑦) = 𝑧))
83823ad2ant3 1132 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝑧 ∈ ran 𝐹 ↔ ∃𝑦𝑌 (𝐹𝑦) = 𝑧))
8483ad3antrrr 729 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝑧 ∈ ran 𝐹 ↔ ∃𝑦𝑌 (𝐹𝑦) = 𝑧))
8572ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) ∧ (𝐹𝑦) ∈ 𝑥) → Fun 𝐹)
8685, 73jctir 524 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) ∧ (𝐹𝑦) ∈ 𝑥) → (Fun 𝐹 ∧ (𝐹𝑥) ⊆ dom 𝐹))
8757ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) → Fun 𝐹)
8887ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) → Fun 𝐹)
89453ad2ant3 1132 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → dom 𝐹 = 𝑌)
9089ad3antrrr 729 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → dom 𝐹 = 𝑌)
9190eleq2d 2901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝑦 ∈ dom 𝐹𝑦𝑌))
9291biimpar 481 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) → 𝑦 ∈ dom 𝐹)
93 fvimacnv 6814 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((Fun 𝐹𝑦 ∈ dom 𝐹) → ((𝐹𝑦) ∈ 𝑥𝑦 ∈ (𝐹𝑥)))
9488, 92, 93syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) → ((𝐹𝑦) ∈ 𝑥𝑦 ∈ (𝐹𝑥)))
9594biimpa 480 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) ∧ (𝐹𝑦) ∈ 𝑥) → 𝑦 ∈ (𝐹𝑥))
96 funfvima2 6985 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((Fun 𝐹 ∧ (𝐹𝑥) ⊆ dom 𝐹) → (𝑦 ∈ (𝐹𝑥) → (𝐹𝑦) ∈ (𝐹 “ (𝐹𝑥))))
9786, 95, 96sylc 65 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) ∧ (𝐹𝑦) ∈ 𝑥) → (𝐹𝑦) ∈ (𝐹 “ (𝐹𝑥)))
9897ex 416 . . . . . . . . . . . . . . . . . . . . . . . 24 ((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) → ((𝐹𝑦) ∈ 𝑥 → (𝐹𝑦) ∈ (𝐹 “ (𝐹𝑥))))
99 eleq1 2903 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝐹𝑦) = 𝑧 → ((𝐹𝑦) ∈ 𝑥𝑧𝑥))
100 eleq1 2903 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝐹𝑦) = 𝑧 → ((𝐹𝑦) ∈ (𝐹 “ (𝐹𝑥)) ↔ 𝑧 ∈ (𝐹 “ (𝐹𝑥))))
10199, 100imbi12d 348 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝐹𝑦) = 𝑧 → (((𝐹𝑦) ∈ 𝑥 → (𝐹𝑦) ∈ (𝐹 “ (𝐹𝑥))) ↔ (𝑧𝑥𝑧 ∈ (𝐹 “ (𝐹𝑥)))))
10298, 101syl5ibcom 248 . . . . . . . . . . . . . . . . . . . . . . 23 ((((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) ∧ 𝑦𝑌) → ((𝐹𝑦) = 𝑧 → (𝑧𝑥𝑧 ∈ (𝐹 “ (𝐹𝑥)))))
103102rexlimdva 3276 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (∃𝑦𝑌 (𝐹𝑦) = 𝑧 → (𝑧𝑥𝑧 ∈ (𝐹 “ (𝐹𝑥)))))
10484, 103sylbid 243 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝑧 ∈ ran 𝐹 → (𝑧𝑥𝑧 ∈ (𝐹 “ (𝐹𝑥)))))
105104impcomd 415 . . . . . . . . . . . . . . . . . . . 20 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → ((𝑧𝑥𝑧 ∈ ran 𝐹) → 𝑧 ∈ (𝐹 “ (𝐹𝑥))))
10680, 105syl5bi 245 . . . . . . . . . . . . . . . . . . 19 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝑧 ∈ (𝑥 ∩ ran 𝐹) → 𝑧 ∈ (𝐹 “ (𝐹𝑥))))
107106ssrdv 3959 . . . . . . . . . . . . . . . . . 18 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝑥 ∩ ran 𝐹) ⊆ (𝐹 “ (𝐹𝑥)))
10879, 107eqssd 3970 . . . . . . . . . . . . . . . . 17 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝐹 “ (𝐹𝑥)) = (𝑥 ∩ ran 𝐹))
109 filin 22465 . . . . . . . . . . . . . . . . . . . . . 22 ((𝐿 ∈ (Fil‘𝑋) ∧ 𝑥𝐿 ∧ ran 𝐹𝐿) → (𝑥 ∩ ran 𝐹) ∈ 𝐿)
1101093exp 1116 . . . . . . . . . . . . . . . . . . . . 21 (𝐿 ∈ (Fil‘𝑋) → (𝑥𝐿 → (ran 𝐹𝐿 → (𝑥 ∩ ran 𝐹) ∈ 𝐿)))
111110com23 86 . . . . . . . . . . . . . . . . . . . 20 (𝐿 ∈ (Fil‘𝑋) → (ran 𝐹𝐿 → (𝑥𝐿 → (𝑥 ∩ ran 𝐹) ∈ 𝐿)))
1121113ad2ant2 1131 . . . . . . . . . . . . . . . . . . 19 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (ran 𝐹𝐿 → (𝑥𝐿 → (𝑥 ∩ ran 𝐹) ∈ 𝐿)))
113112imp31 421 . . . . . . . . . . . . . . . . . 18 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) → (𝑥 ∩ ran 𝐹) ∈ 𝐿)
114113adantr 484 . . . . . . . . . . . . . . . . 17 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝑥 ∩ ran 𝐹) ∈ 𝐿)
115108, 114eqeltrd 2916 . . . . . . . . . . . . . . . 16 (((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) ∧ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡𝑡𝑋)) → (𝐹 “ (𝐹𝑥)) ∈ 𝐿)
116115exp32 424 . . . . . . . . . . . . . . 15 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) → ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡 → (𝑡𝑋 → (𝐹 “ (𝐹𝑥)) ∈ 𝐿)))
117 imaeq2 5912 . . . . . . . . . . . . . . . . 17 (𝑠 = (𝐹𝑥) → (𝐹𝑠) = (𝐹 “ (𝐹𝑥)))
118117sseq1d 3984 . . . . . . . . . . . . . . . 16 (𝑠 = (𝐹𝑥) → ((𝐹𝑠) ⊆ 𝑡 ↔ (𝐹 “ (𝐹𝑥)) ⊆ 𝑡))
119117eleq1d 2900 . . . . . . . . . . . . . . . . 17 (𝑠 = (𝐹𝑥) → ((𝐹𝑠) ∈ 𝐿 ↔ (𝐹 “ (𝐹𝑥)) ∈ 𝐿))
120119imbi2d 344 . . . . . . . . . . . . . . . 16 (𝑠 = (𝐹𝑥) → ((𝑡𝑋 → (𝐹𝑠) ∈ 𝐿) ↔ (𝑡𝑋 → (𝐹 “ (𝐹𝑥)) ∈ 𝐿)))
121118, 120imbi12d 348 . . . . . . . . . . . . . . 15 (𝑠 = (𝐹𝑥) → (((𝐹𝑠) ⊆ 𝑡 → (𝑡𝑋 → (𝐹𝑠) ∈ 𝐿)) ↔ ((𝐹 “ (𝐹𝑥)) ⊆ 𝑡 → (𝑡𝑋 → (𝐹 “ (𝐹𝑥)) ∈ 𝐿))))
122116, 121syl5ibrcom 250 . . . . . . . . . . . . . 14 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ 𝑥𝐿) → (𝑠 = (𝐹𝑥) → ((𝐹𝑠) ⊆ 𝑡 → (𝑡𝑋 → (𝐹𝑠) ∈ 𝐿))))
123122rexlimdva 3276 . . . . . . . . . . . . 13 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (∃𝑥𝐿 𝑠 = (𝐹𝑥) → ((𝐹𝑠) ⊆ 𝑡 → (𝑡𝑋 → (𝐹𝑠) ∈ 𝐿))))
12470, 123syl5bi 245 . . . . . . . . . . . 12 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) → ((𝐹𝑠) ⊆ 𝑡 → (𝑡𝑋 → (𝐹𝑠) ∈ 𝐿))))
125124imp44 432 . . . . . . . . . . 11 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ ((𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∧ (𝐹𝑠) ⊆ 𝑡) ∧ 𝑡𝑋)) → (𝐹𝑠) ∈ 𝐿)
126 simprr 772 . . . . . . . . . . 11 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ ((𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∧ (𝐹𝑠) ⊆ 𝑡) ∧ 𝑡𝑋)) → 𝑡𝑋)
127 simprlr 779 . . . . . . . . . . 11 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ ((𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∧ (𝐹𝑠) ⊆ 𝑡) ∧ 𝑡𝑋)) → (𝐹𝑠) ⊆ 𝑡)
128 filss 22464 . . . . . . . . . . 11 ((𝐿 ∈ (Fil‘𝑋) ∧ ((𝐹𝑠) ∈ 𝐿𝑡𝑋 ∧ (𝐹𝑠) ⊆ 𝑡)) → 𝑡𝐿)
12968, 125, 126, 127, 128syl13anc 1369 . . . . . . . . . 10 ((((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) ∧ ((𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∧ (𝐹𝑠) ⊆ 𝑡) ∧ 𝑡𝑋)) → 𝑡𝐿)
130129exp44 441 . . . . . . . . 9 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥)) → ((𝐹𝑠) ⊆ 𝑡 → (𝑡𝑋𝑡𝐿))))
131130rexlimdv 3275 . . . . . . . 8 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡 → (𝑡𝑋𝑡𝐿)))
132131impcomd 415 . . . . . . 7 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → ((𝑡𝑋 ∧ ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡) → 𝑡𝐿))
13367, 132impbid 215 . . . . . 6 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑡𝐿 ↔ (𝑡𝑋 ∧ ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡)))
1342adantr 484 . . . . . . 7 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → 𝑋𝐿)
135 rnelfmlem 22563 . . . . . . 7 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → ran (𝑥𝐿 ↦ (𝐹𝑥)) ∈ (fBas‘𝑌))
136 simpl3 1190 . . . . . . 7 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → 𝐹:𝑌𝑋)
137 elfm 22558 . . . . . . 7 ((𝑋𝐿 ∧ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∈ (fBas‘𝑌) ∧ 𝐹:𝑌𝑋) → (𝑡 ∈ ((𝑋 FilMap 𝐹)‘ran (𝑥𝐿 ↦ (𝐹𝑥))) ↔ (𝑡𝑋 ∧ ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡)))
138134, 135, 136, 137syl3anc 1368 . . . . . 6 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑡 ∈ ((𝑋 FilMap 𝐹)‘ran (𝑥𝐿 ↦ (𝐹𝑥))) ↔ (𝑡𝑋 ∧ ∃𝑠 ∈ ran (𝑥𝐿 ↦ (𝐹𝑥))(𝐹𝑠) ⊆ 𝑡)))
139133, 138bitr4d 285 . . . . 5 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑡𝐿𝑡 ∈ ((𝑋 FilMap 𝐹)‘ran (𝑥𝐿 ↦ (𝐹𝑥)))))
140139eqrdv 2822 . . . 4 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → 𝐿 = ((𝑋 FilMap 𝐹)‘ran (𝑥𝐿 ↦ (𝐹𝑥))))
1417adantr 484 . . . . 5 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → (𝑋 FilMap 𝐹) Fn (fBas‘𝑌))
142 fnfvelrn 6839 . . . . 5 (((𝑋 FilMap 𝐹) Fn (fBas‘𝑌) ∧ ran (𝑥𝐿 ↦ (𝐹𝑥)) ∈ (fBas‘𝑌)) → ((𝑋 FilMap 𝐹)‘ran (𝑥𝐿 ↦ (𝐹𝑥))) ∈ ran (𝑋 FilMap 𝐹))
143141, 135, 142syl2anc 587 . . . 4 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → ((𝑋 FilMap 𝐹)‘ran (𝑥𝐿 ↦ (𝐹𝑥))) ∈ ran (𝑋 FilMap 𝐹))
144140, 143eqeltrd 2916 . . 3 (((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) ∧ ran 𝐹𝐿) → 𝐿 ∈ ran (𝑋 FilMap 𝐹))
145144ex 416 . 2 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (ran 𝐹𝐿𝐿 ∈ ran (𝑋 FilMap 𝐹)))
14633, 145impbid 215 1 ((𝑌𝐴𝐿 ∈ (Fil‘𝑋) ∧ 𝐹:𝑌𝑋) → (𝐿 ∈ ran (𝑋 FilMap 𝐹) ↔ ran 𝐹𝐿))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 209  wa 399  w3a 1084   = wceq 1538  wcel 2115  wrex 3134  Vcvv 3480  cin 3918  wss 3919  cmpt 5132  ccnv 5541  dom cdm 5542  ran crn 5543  cima 5545  Fun wfun 6337   Fn wfn 6338  wf 6339  ontowfo 6341  cfv 6343  (class class class)co 7149  fBascfbas 20086  filGencfg 20087  Filcfil 22456   FilMap cfm 22544
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1971  ax-7 2016  ax-8 2117  ax-9 2125  ax-10 2146  ax-11 2162  ax-12 2179  ax-ext 2796  ax-rep 5176  ax-sep 5189  ax-nul 5196  ax-pow 5253  ax-pr 5317  ax-un 7455
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2071  df-mo 2624  df-eu 2655  df-clab 2803  df-cleq 2817  df-clel 2896  df-nfc 2964  df-ne 3015  df-nel 3119  df-ral 3138  df-rex 3139  df-reu 3140  df-rab 3142  df-v 3482  df-sbc 3759  df-csb 3867  df-dif 3922  df-un 3924  df-in 3926  df-ss 3936  df-nul 4277  df-if 4451  df-pw 4524  df-sn 4551  df-pr 4553  df-op 4557  df-uni 4825  df-iun 4907  df-br 5053  df-opab 5115  df-mpt 5133  df-id 5447  df-xp 5548  df-rel 5549  df-cnv 5550  df-co 5551  df-dm 5552  df-rn 5553  df-res 5554  df-ima 5555  df-iota 6302  df-fun 6345  df-fn 6346  df-f 6347  df-f1 6348  df-fo 6349  df-f1o 6350  df-fv 6351  df-ov 7152  df-oprab 7153  df-mpo 7154  df-fbas 20095  df-fg 20096  df-fil 22457  df-fm 22549
This theorem is referenced by: (None)
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