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Theorem tsmsfbas 24152
Description: The collection of all sets of the form 𝐹(𝑧) = {𝑦𝑆𝑧𝑦}, which can be read as the set of all finite subsets of 𝐴 which contain 𝑧 as a subset, for each finite subset 𝑧 of 𝐴, form a filter base. (Contributed by Mario Carneiro, 2-Sep-2015.)
Hypotheses
Ref Expression
tsmsfbas.s 𝑆 = (𝒫 𝐴 ∩ Fin)
tsmsfbas.f 𝐹 = (𝑧𝑆 ↦ {𝑦𝑆𝑧𝑦})
tsmsfbas.l 𝐿 = ran 𝐹
tsmsfbas.a (𝜑𝐴𝑊)
Assertion
Ref Expression
tsmsfbas (𝜑𝐿 ∈ (fBas‘𝑆))
Distinct variable groups:   𝑧,𝐴   𝑦,𝑧,𝑆
Allowed substitution hints:   𝜑(𝑦,𝑧)   𝐴(𝑦)   𝐹(𝑦,𝑧)   𝐿(𝑦,𝑧)   𝑊(𝑦,𝑧)

Proof of Theorem tsmsfbas
Dummy variables 𝑢 𝑎 𝑣 𝑏 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 tsmsfbas.a . 2 (𝜑𝐴𝑊)
2 elex 3499 . 2 (𝐴𝑊𝐴 ∈ V)
3 tsmsfbas.l . . 3 𝐿 = ran 𝐹
4 ssrab2 4090 . . . . . . 7 {𝑦𝑆𝑧𝑦} ⊆ 𝑆
5 tsmsfbas.s . . . . . . . . . 10 𝑆 = (𝒫 𝐴 ∩ Fin)
6 pwexg 5384 . . . . . . . . . . 11 (𝐴 ∈ V → 𝒫 𝐴 ∈ V)
7 inex1g 5325 . . . . . . . . . . 11 (𝒫 𝐴 ∈ V → (𝒫 𝐴 ∩ Fin) ∈ V)
86, 7syl 17 . . . . . . . . . 10 (𝐴 ∈ V → (𝒫 𝐴 ∩ Fin) ∈ V)
95, 8eqeltrid 2843 . . . . . . . . 9 (𝐴 ∈ V → 𝑆 ∈ V)
109adantr 480 . . . . . . . 8 ((𝐴 ∈ V ∧ 𝑧𝑆) → 𝑆 ∈ V)
11 elpw2g 5339 . . . . . . . 8 (𝑆 ∈ V → ({𝑦𝑆𝑧𝑦} ∈ 𝒫 𝑆 ↔ {𝑦𝑆𝑧𝑦} ⊆ 𝑆))
1210, 11syl 17 . . . . . . 7 ((𝐴 ∈ V ∧ 𝑧𝑆) → ({𝑦𝑆𝑧𝑦} ∈ 𝒫 𝑆 ↔ {𝑦𝑆𝑧𝑦} ⊆ 𝑆))
134, 12mpbiri 258 . . . . . 6 ((𝐴 ∈ V ∧ 𝑧𝑆) → {𝑦𝑆𝑧𝑦} ∈ 𝒫 𝑆)
14 tsmsfbas.f . . . . . 6 𝐹 = (𝑧𝑆 ↦ {𝑦𝑆𝑧𝑦})
1513, 14fmptd 7134 . . . . 5 (𝐴 ∈ V → 𝐹:𝑆⟶𝒫 𝑆)
1615frnd 6745 . . . 4 (𝐴 ∈ V → ran 𝐹 ⊆ 𝒫 𝑆)
17 0ss 4406 . . . . . . . . . 10 ∅ ⊆ 𝐴
18 0fi 9081 . . . . . . . . . 10 ∅ ∈ Fin
19 elfpw 9392 . . . . . . . . . 10 (∅ ∈ (𝒫 𝐴 ∩ Fin) ↔ (∅ ⊆ 𝐴 ∧ ∅ ∈ Fin))
2017, 18, 19mpbir2an 711 . . . . . . . . 9 ∅ ∈ (𝒫 𝐴 ∩ Fin)
2120, 5eleqtrri 2838 . . . . . . . 8 ∅ ∈ 𝑆
22 0ss 4406 . . . . . . . . 9 ∅ ⊆ 𝑦
2322rgenw 3063 . . . . . . . 8 𝑦𝑆 ∅ ⊆ 𝑦
24 rabid2 3468 . . . . . . . . . 10 (𝑆 = {𝑦𝑆𝑧𝑦} ↔ ∀𝑦𝑆 𝑧𝑦)
25 sseq1 4021 . . . . . . . . . . 11 (𝑧 = ∅ → (𝑧𝑦 ↔ ∅ ⊆ 𝑦))
2625ralbidv 3176 . . . . . . . . . 10 (𝑧 = ∅ → (∀𝑦𝑆 𝑧𝑦 ↔ ∀𝑦𝑆 ∅ ⊆ 𝑦))
2724, 26bitrid 283 . . . . . . . . 9 (𝑧 = ∅ → (𝑆 = {𝑦𝑆𝑧𝑦} ↔ ∀𝑦𝑆 ∅ ⊆ 𝑦))
2827rspcev 3622 . . . . . . . 8 ((∅ ∈ 𝑆 ∧ ∀𝑦𝑆 ∅ ⊆ 𝑦) → ∃𝑧𝑆 𝑆 = {𝑦𝑆𝑧𝑦})
2921, 23, 28mp2an 692 . . . . . . 7 𝑧𝑆 𝑆 = {𝑦𝑆𝑧𝑦}
3014elrnmpt 5972 . . . . . . . 8 (𝑆 ∈ V → (𝑆 ∈ ran 𝐹 ↔ ∃𝑧𝑆 𝑆 = {𝑦𝑆𝑧𝑦}))
319, 30syl 17 . . . . . . 7 (𝐴 ∈ V → (𝑆 ∈ ran 𝐹 ↔ ∃𝑧𝑆 𝑆 = {𝑦𝑆𝑧𝑦}))
3229, 31mpbiri 258 . . . . . 6 (𝐴 ∈ V → 𝑆 ∈ ran 𝐹)
3332ne0d 4348 . . . . 5 (𝐴 ∈ V → ran 𝐹 ≠ ∅)
34 simpr 484 . . . . . . . . . . . 12 ((𝐴 ∈ V ∧ 𝑧𝑆) → 𝑧𝑆)
35 ssid 4018 . . . . . . . . . . . 12 𝑧𝑧
36 sseq2 4022 . . . . . . . . . . . . 13 (𝑦 = 𝑧 → (𝑧𝑦𝑧𝑧))
3736rspcev 3622 . . . . . . . . . . . 12 ((𝑧𝑆𝑧𝑧) → ∃𝑦𝑆 𝑧𝑦)
3834, 35, 37sylancl 586 . . . . . . . . . . 11 ((𝐴 ∈ V ∧ 𝑧𝑆) → ∃𝑦𝑆 𝑧𝑦)
39 rabn0 4395 . . . . . . . . . . 11 ({𝑦𝑆𝑧𝑦} ≠ ∅ ↔ ∃𝑦𝑆 𝑧𝑦)
4038, 39sylibr 234 . . . . . . . . . 10 ((𝐴 ∈ V ∧ 𝑧𝑆) → {𝑦𝑆𝑧𝑦} ≠ ∅)
4140necomd 2994 . . . . . . . . 9 ((𝐴 ∈ V ∧ 𝑧𝑆) → ∅ ≠ {𝑦𝑆𝑧𝑦})
4241neneqd 2943 . . . . . . . 8 ((𝐴 ∈ V ∧ 𝑧𝑆) → ¬ ∅ = {𝑦𝑆𝑧𝑦})
4342nrexdv 3147 . . . . . . 7 (𝐴 ∈ V → ¬ ∃𝑧𝑆 ∅ = {𝑦𝑆𝑧𝑦})
44 0ex 5313 . . . . . . . 8 ∅ ∈ V
4514elrnmpt 5972 . . . . . . . 8 (∅ ∈ V → (∅ ∈ ran 𝐹 ↔ ∃𝑧𝑆 ∅ = {𝑦𝑆𝑧𝑦}))
4644, 45ax-mp 5 . . . . . . 7 (∅ ∈ ran 𝐹 ↔ ∃𝑧𝑆 ∅ = {𝑦𝑆𝑧𝑦})
4743, 46sylnibr 329 . . . . . 6 (𝐴 ∈ V → ¬ ∅ ∈ ran 𝐹)
48 df-nel 3045 . . . . . 6 (∅ ∉ ran 𝐹 ↔ ¬ ∅ ∈ ran 𝐹)
4947, 48sylibr 234 . . . . 5 (𝐴 ∈ V → ∅ ∉ ran 𝐹)
50 elfpw 9392 . . . . . . . . . . . . . . . . . 18 (𝑢 ∈ (𝒫 𝐴 ∩ Fin) ↔ (𝑢𝐴𝑢 ∈ Fin))
5150simplbi 497 . . . . . . . . . . . . . . . . 17 (𝑢 ∈ (𝒫 𝐴 ∩ Fin) → 𝑢𝐴)
5251, 5eleq2s 2857 . . . . . . . . . . . . . . . 16 (𝑢𝑆𝑢𝐴)
53 elfpw 9392 . . . . . . . . . . . . . . . . . 18 (𝑣 ∈ (𝒫 𝐴 ∩ Fin) ↔ (𝑣𝐴𝑣 ∈ Fin))
5453simplbi 497 . . . . . . . . . . . . . . . . 17 (𝑣 ∈ (𝒫 𝐴 ∩ Fin) → 𝑣𝐴)
5554, 5eleq2s 2857 . . . . . . . . . . . . . . . 16 (𝑣𝑆𝑣𝐴)
5652, 55anim12i 613 . . . . . . . . . . . . . . 15 ((𝑢𝑆𝑣𝑆) → (𝑢𝐴𝑣𝐴))
57 unss 4200 . . . . . . . . . . . . . . 15 ((𝑢𝐴𝑣𝐴) ↔ (𝑢𝑣) ⊆ 𝐴)
5856, 57sylib 218 . . . . . . . . . . . . . 14 ((𝑢𝑆𝑣𝑆) → (𝑢𝑣) ⊆ 𝐴)
59 elinel2 4212 . . . . . . . . . . . . . . . 16 (𝑢 ∈ (𝒫 𝐴 ∩ Fin) → 𝑢 ∈ Fin)
6059, 5eleq2s 2857 . . . . . . . . . . . . . . 15 (𝑢𝑆𝑢 ∈ Fin)
61 elinel2 4212 . . . . . . . . . . . . . . . 16 (𝑣 ∈ (𝒫 𝐴 ∩ Fin) → 𝑣 ∈ Fin)
6261, 5eleq2s 2857 . . . . . . . . . . . . . . 15 (𝑣𝑆𝑣 ∈ Fin)
63 unfi 9210 . . . . . . . . . . . . . . 15 ((𝑢 ∈ Fin ∧ 𝑣 ∈ Fin) → (𝑢𝑣) ∈ Fin)
6460, 62, 63syl2an 596 . . . . . . . . . . . . . 14 ((𝑢𝑆𝑣𝑆) → (𝑢𝑣) ∈ Fin)
65 elfpw 9392 . . . . . . . . . . . . . 14 ((𝑢𝑣) ∈ (𝒫 𝐴 ∩ Fin) ↔ ((𝑢𝑣) ⊆ 𝐴 ∧ (𝑢𝑣) ∈ Fin))
6658, 64, 65sylanbrc 583 . . . . . . . . . . . . 13 ((𝑢𝑆𝑣𝑆) → (𝑢𝑣) ∈ (𝒫 𝐴 ∩ Fin))
6766adantl 481 . . . . . . . . . . . 12 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → (𝑢𝑣) ∈ (𝒫 𝐴 ∩ Fin))
6867, 5eleqtrrdi 2850 . . . . . . . . . . 11 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → (𝑢𝑣) ∈ 𝑆)
69 eqidd 2736 . . . . . . . . . . 11 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} = {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦})
70 sseq1 4021 . . . . . . . . . . . . 13 (𝑎 = (𝑢𝑣) → (𝑎𝑦 ↔ (𝑢𝑣) ⊆ 𝑦))
7170rabbidv 3441 . . . . . . . . . . . 12 (𝑎 = (𝑢𝑣) → {𝑦𝑆𝑎𝑦} = {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦})
7271rspceeqv 3645 . . . . . . . . . . 11 (((𝑢𝑣) ∈ 𝑆 ∧ {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} = {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) → ∃𝑎𝑆 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} = {𝑦𝑆𝑎𝑦})
7368, 69, 72syl2anc 584 . . . . . . . . . 10 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → ∃𝑎𝑆 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} = {𝑦𝑆𝑎𝑦})
749adantr 480 . . . . . . . . . . . 12 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → 𝑆 ∈ V)
75 rabexg 5343 . . . . . . . . . . . 12 (𝑆 ∈ V → {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ V)
7674, 75syl 17 . . . . . . . . . . 11 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ V)
77 sseq1 4021 . . . . . . . . . . . . . . 15 (𝑧 = 𝑎 → (𝑧𝑦𝑎𝑦))
7877rabbidv 3441 . . . . . . . . . . . . . 14 (𝑧 = 𝑎 → {𝑦𝑆𝑧𝑦} = {𝑦𝑆𝑎𝑦})
7978cbvmptv 5261 . . . . . . . . . . . . 13 (𝑧𝑆 ↦ {𝑦𝑆𝑧𝑦}) = (𝑎𝑆 ↦ {𝑦𝑆𝑎𝑦})
8014, 79eqtri 2763 . . . . . . . . . . . 12 𝐹 = (𝑎𝑆 ↦ {𝑦𝑆𝑎𝑦})
8180elrnmpt 5972 . . . . . . . . . . 11 ({𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ V → ({𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ ran 𝐹 ↔ ∃𝑎𝑆 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} = {𝑦𝑆𝑎𝑦}))
8276, 81syl 17 . . . . . . . . . 10 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → ({𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ ran 𝐹 ↔ ∃𝑎𝑆 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} = {𝑦𝑆𝑎𝑦}))
8373, 82mpbird 257 . . . . . . . . 9 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ ran 𝐹)
84 pwidg 4625 . . . . . . . . . 10 ({𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ V → {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦})
8576, 84syl 17 . . . . . . . . 9 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦})
86 inelcm 4471 . . . . . . . . 9 (({𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ ran 𝐹 ∧ {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦} ∈ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) → (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) ≠ ∅)
8783, 85, 86syl2anc 584 . . . . . . . 8 ((𝐴 ∈ V ∧ (𝑢𝑆𝑣𝑆)) → (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) ≠ ∅)
8887ralrimivva 3200 . . . . . . 7 (𝐴 ∈ V → ∀𝑢𝑆𝑣𝑆 (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) ≠ ∅)
89 rabexg 5343 . . . . . . . . . 10 (𝑆 ∈ V → {𝑦𝑆𝑢𝑦} ∈ V)
909, 89syl 17 . . . . . . . . 9 (𝐴 ∈ V → {𝑦𝑆𝑢𝑦} ∈ V)
9190ralrimivw 3148 . . . . . . . 8 (𝐴 ∈ V → ∀𝑢𝑆 {𝑦𝑆𝑢𝑦} ∈ V)
92 sseq1 4021 . . . . . . . . . . . 12 (𝑧 = 𝑢 → (𝑧𝑦𝑢𝑦))
9392rabbidv 3441 . . . . . . . . . . 11 (𝑧 = 𝑢 → {𝑦𝑆𝑧𝑦} = {𝑦𝑆𝑢𝑦})
9493cbvmptv 5261 . . . . . . . . . 10 (𝑧𝑆 ↦ {𝑦𝑆𝑧𝑦}) = (𝑢𝑆 ↦ {𝑦𝑆𝑢𝑦})
9514, 94eqtri 2763 . . . . . . . . 9 𝐹 = (𝑢𝑆 ↦ {𝑦𝑆𝑢𝑦})
96 ineq1 4221 . . . . . . . . . . . . . 14 (𝑎 = {𝑦𝑆𝑢𝑦} → (𝑎 ∩ {𝑦𝑆𝑣𝑦}) = ({𝑦𝑆𝑢𝑦} ∩ {𝑦𝑆𝑣𝑦}))
97 inrab 4322 . . . . . . . . . . . . . . 15 ({𝑦𝑆𝑢𝑦} ∩ {𝑦𝑆𝑣𝑦}) = {𝑦𝑆 ∣ (𝑢𝑦𝑣𝑦)}
98 unss 4200 . . . . . . . . . . . . . . . 16 ((𝑢𝑦𝑣𝑦) ↔ (𝑢𝑣) ⊆ 𝑦)
9998rabbii 3439 . . . . . . . . . . . . . . 15 {𝑦𝑆 ∣ (𝑢𝑦𝑣𝑦)} = {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}
10097, 99eqtri 2763 . . . . . . . . . . . . . 14 ({𝑦𝑆𝑢𝑦} ∩ {𝑦𝑆𝑣𝑦}) = {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}
10196, 100eqtrdi 2791 . . . . . . . . . . . . 13 (𝑎 = {𝑦𝑆𝑢𝑦} → (𝑎 ∩ {𝑦𝑆𝑣𝑦}) = {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦})
102101pweqd 4622 . . . . . . . . . . . 12 (𝑎 = {𝑦𝑆𝑢𝑦} → 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦}) = 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦})
103102ineq2d 4228 . . . . . . . . . . 11 (𝑎 = {𝑦𝑆𝑢𝑦} → (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) = (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}))
104103neeq1d 2998 . . . . . . . . . 10 (𝑎 = {𝑦𝑆𝑢𝑦} → ((ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅ ↔ (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) ≠ ∅))
105104ralbidv 3176 . . . . . . . . 9 (𝑎 = {𝑦𝑆𝑢𝑦} → (∀𝑣𝑆 (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅ ↔ ∀𝑣𝑆 (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) ≠ ∅))
10695, 105ralrnmptw 7114 . . . . . . . 8 (∀𝑢𝑆 {𝑦𝑆𝑢𝑦} ∈ V → (∀𝑎 ∈ ran 𝐹𝑣𝑆 (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅ ↔ ∀𝑢𝑆𝑣𝑆 (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) ≠ ∅))
10791, 106syl 17 . . . . . . 7 (𝐴 ∈ V → (∀𝑎 ∈ ran 𝐹𝑣𝑆 (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅ ↔ ∀𝑢𝑆𝑣𝑆 (ran 𝐹 ∩ 𝒫 {𝑦𝑆 ∣ (𝑢𝑣) ⊆ 𝑦}) ≠ ∅))
10888, 107mpbird 257 . . . . . 6 (𝐴 ∈ V → ∀𝑎 ∈ ran 𝐹𝑣𝑆 (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅)
109 rabexg 5343 . . . . . . . . . 10 (𝑆 ∈ V → {𝑦𝑆𝑣𝑦} ∈ V)
1109, 109syl 17 . . . . . . . . 9 (𝐴 ∈ V → {𝑦𝑆𝑣𝑦} ∈ V)
111110ralrimivw 3148 . . . . . . . 8 (𝐴 ∈ V → ∀𝑣𝑆 {𝑦𝑆𝑣𝑦} ∈ V)
112 sseq1 4021 . . . . . . . . . . . 12 (𝑧 = 𝑣 → (𝑧𝑦𝑣𝑦))
113112rabbidv 3441 . . . . . . . . . . 11 (𝑧 = 𝑣 → {𝑦𝑆𝑧𝑦} = {𝑦𝑆𝑣𝑦})
114113cbvmptv 5261 . . . . . . . . . 10 (𝑧𝑆 ↦ {𝑦𝑆𝑧𝑦}) = (𝑣𝑆 ↦ {𝑦𝑆𝑣𝑦})
11514, 114eqtri 2763 . . . . . . . . 9 𝐹 = (𝑣𝑆 ↦ {𝑦𝑆𝑣𝑦})
116 ineq2 4222 . . . . . . . . . . . 12 (𝑏 = {𝑦𝑆𝑣𝑦} → (𝑎𝑏) = (𝑎 ∩ {𝑦𝑆𝑣𝑦}))
117116pweqd 4622 . . . . . . . . . . 11 (𝑏 = {𝑦𝑆𝑣𝑦} → 𝒫 (𝑎𝑏) = 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦}))
118117ineq2d 4228 . . . . . . . . . 10 (𝑏 = {𝑦𝑆𝑣𝑦} → (ran 𝐹 ∩ 𝒫 (𝑎𝑏)) = (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})))
119118neeq1d 2998 . . . . . . . . 9 (𝑏 = {𝑦𝑆𝑣𝑦} → ((ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅ ↔ (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅))
120115, 119ralrnmptw 7114 . . . . . . . 8 (∀𝑣𝑆 {𝑦𝑆𝑣𝑦} ∈ V → (∀𝑏 ∈ ran 𝐹(ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅ ↔ ∀𝑣𝑆 (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅))
121111, 120syl 17 . . . . . . 7 (𝐴 ∈ V → (∀𝑏 ∈ ran 𝐹(ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅ ↔ ∀𝑣𝑆 (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅))
122121ralbidv 3176 . . . . . 6 (𝐴 ∈ V → (∀𝑎 ∈ ran 𝐹𝑏 ∈ ran 𝐹(ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅ ↔ ∀𝑎 ∈ ran 𝐹𝑣𝑆 (ran 𝐹 ∩ 𝒫 (𝑎 ∩ {𝑦𝑆𝑣𝑦})) ≠ ∅))
123108, 122mpbird 257 . . . . 5 (𝐴 ∈ V → ∀𝑎 ∈ ran 𝐹𝑏 ∈ ran 𝐹(ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅)
12433, 49, 1233jca 1127 . . . 4 (𝐴 ∈ V → (ran 𝐹 ≠ ∅ ∧ ∅ ∉ ran 𝐹 ∧ ∀𝑎 ∈ ran 𝐹𝑏 ∈ ran 𝐹(ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅))
125 isfbas 23853 . . . . 5 (𝑆 ∈ V → (ran 𝐹 ∈ (fBas‘𝑆) ↔ (ran 𝐹 ⊆ 𝒫 𝑆 ∧ (ran 𝐹 ≠ ∅ ∧ ∅ ∉ ran 𝐹 ∧ ∀𝑎 ∈ ran 𝐹𝑏 ∈ ran 𝐹(ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅))))
1269, 125syl 17 . . . 4 (𝐴 ∈ V → (ran 𝐹 ∈ (fBas‘𝑆) ↔ (ran 𝐹 ⊆ 𝒫 𝑆 ∧ (ran 𝐹 ≠ ∅ ∧ ∅ ∉ ran 𝐹 ∧ ∀𝑎 ∈ ran 𝐹𝑏 ∈ ran 𝐹(ran 𝐹 ∩ 𝒫 (𝑎𝑏)) ≠ ∅))))
12716, 124, 126mpbir2and 713 . . 3 (𝐴 ∈ V → ran 𝐹 ∈ (fBas‘𝑆))
1283, 127eqeltrid 2843 . 2 (𝐴 ∈ V → 𝐿 ∈ (fBas‘𝑆))
1291, 2, 1283syl 18 1 (𝜑𝐿 ∈ (fBas‘𝑆))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 206  wa 395  w3a 1086   = wceq 1537  wcel 2106  wne 2938  wnel 3044  wral 3059  wrex 3068  {crab 3433  Vcvv 3478  cun 3961  cin 3962  wss 3963  c0 4339  𝒫 cpw 4605  cmpt 5231  ran crn 5690  cfv 6563  Fincfn 8984  fBascfbas 21370
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-9 2116  ax-10 2139  ax-11 2155  ax-12 2175  ax-ext 2706  ax-sep 5302  ax-nul 5312  ax-pow 5371  ax-pr 5438  ax-un 7754
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1540  df-fal 1550  df-ex 1777  df-nf 1781  df-sb 2063  df-mo 2538  df-eu 2567  df-clab 2713  df-cleq 2727  df-clel 2814  df-nfc 2890  df-ne 2939  df-nel 3045  df-ral 3060  df-rex 3069  df-reu 3379  df-rab 3434  df-v 3480  df-sbc 3792  df-csb 3909  df-dif 3966  df-un 3968  df-in 3970  df-ss 3980  df-pss 3983  df-nul 4340  df-if 4532  df-pw 4607  df-sn 4632  df-pr 4634  df-op 4638  df-uni 4913  df-br 5149  df-opab 5211  df-mpt 5232  df-tr 5266  df-id 5583  df-eprel 5589  df-po 5597  df-so 5598  df-fr 5641  df-we 5643  df-xp 5695  df-rel 5696  df-cnv 5697  df-co 5698  df-dm 5699  df-rn 5700  df-res 5701  df-ima 5702  df-ord 6389  df-on 6390  df-lim 6391  df-suc 6392  df-iota 6516  df-fun 6565  df-fn 6566  df-f 6567  df-f1 6568  df-fo 6569  df-f1o 6570  df-fv 6571  df-om 7888  df-en 8985  df-fin 8988  df-fbas 21379
This theorem is referenced by:  eltsms  24157  haustsms  24160  tsmscls  24162  tsmsmhm  24170  tsmsadd  24171
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