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Theorem bnj1523 30186
Description: Technical lemma for bnj1522 30187. This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem). (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) (New usage is discouraged.)
Hypotheses
Ref Expression
bnj1523.1 𝐵 = {𝑑 ∣ (𝑑𝐴 ∧ ∀𝑥𝑑 pred(𝑥, 𝐴, 𝑅) ⊆ 𝑑)}
bnj1523.2 𝑌 = ⟨𝑥, (𝑓 ↾ pred(𝑥, 𝐴, 𝑅))⟩
bnj1523.3 𝐶 = {𝑓 ∣ ∃𝑑𝐵 (𝑓 Fn 𝑑 ∧ ∀𝑥𝑑 (𝑓𝑥) = (𝐺𝑌))}
bnj1523.4 𝐹 = 𝐶
bnj1523.5 (𝜑 ↔ (𝑅 FrSe 𝐴𝐻 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐻𝑥) = (𝐺‘⟨𝑥, (𝐻 ↾ pred(𝑥, 𝐴, 𝑅))⟩)))
bnj1523.6 (𝜓 ↔ (𝜑𝐹𝐻))
bnj1523.7 (𝜒 ↔ (𝜓𝑥𝐴 ∧ (𝐹𝑥) ≠ (𝐻𝑥)))
bnj1523.8 𝐷 = {𝑥𝐴 ∣ (𝐹𝑥) ≠ (𝐻𝑥)}
bnj1523.9 (𝜃 ↔ (𝜒𝑦𝐷 ∧ ∀𝑧𝐷 ¬ 𝑧𝑅𝑦))
Assertion
Ref Expression
bnj1523 ((𝑅 FrSe 𝐴𝐻 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐻𝑥) = (𝐺‘⟨𝑥, (𝐻 ↾ pred(𝑥, 𝐴, 𝑅))⟩)) → 𝐹 = 𝐻)
Distinct variable groups:   𝐴,𝑑,𝑓,𝑥   𝑦,𝐴,𝑧,𝑥   𝐵,𝑓   𝑦,𝐷,𝑧   𝑦,𝐹,𝑧   𝐺,𝑑,𝑓,𝑥   𝑦,𝐺   𝑥,𝐻,𝑦,𝑧   𝑅,𝑑,𝑓,𝑥   𝑦,𝑅,𝑧   𝑌,𝑑   𝜒,𝑦
Allowed substitution hints:   𝜑(𝑥,𝑦,𝑧,𝑓,𝑑)   𝜓(𝑥,𝑦,𝑧,𝑓,𝑑)   𝜒(𝑥,𝑧,𝑓,𝑑)   𝜃(𝑥,𝑦,𝑧,𝑓,𝑑)   𝐵(𝑥,𝑦,𝑧,𝑑)   𝐶(𝑥,𝑦,𝑧,𝑓,𝑑)   𝐷(𝑥,𝑓,𝑑)   𝐹(𝑥,𝑓,𝑑)   𝐺(𝑧)   𝐻(𝑓,𝑑)   𝑌(𝑥,𝑦,𝑧,𝑓)

Proof of Theorem bnj1523
Dummy variables 𝑣 𝑤 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 bnj1523.5 . 2 (𝜑 ↔ (𝑅 FrSe 𝐴𝐻 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐻𝑥) = (𝐺‘⟨𝑥, (𝐻 ↾ pred(𝑥, 𝐴, 𝑅))⟩)))
2 bnj1523.6 . . 3 (𝜓 ↔ (𝜑𝐹𝐻))
3 bnj1523.9 . . . . . . . . . . . . 13 (𝜃 ↔ (𝜒𝑦𝐷 ∧ ∀𝑧𝐷 ¬ 𝑧𝑅𝑦))
4 bnj1523.7 . . . . . . . . . . . . . 14 (𝜒 ↔ (𝜓𝑥𝐴 ∧ (𝐹𝑥) ≠ (𝐻𝑥)))
5 bnj1523.1 . . . . . . . . . . . . . . . . 17 𝐵 = {𝑑 ∣ (𝑑𝐴 ∧ ∀𝑥𝑑 pred(𝑥, 𝐴, 𝑅) ⊆ 𝑑)}
6 bnj1523.2 . . . . . . . . . . . . . . . . 17 𝑌 = ⟨𝑥, (𝑓 ↾ pred(𝑥, 𝐴, 𝑅))⟩
7 bnj1523.3 . . . . . . . . . . . . . . . . 17 𝐶 = {𝑓 ∣ ∃𝑑𝐵 (𝑓 Fn 𝑑 ∧ ∀𝑥𝑑 (𝑓𝑥) = (𝐺𝑌))}
8 bnj1523.4 . . . . . . . . . . . . . . . . 17 𝐹 = 𝐶
95, 6, 7, 8bnj60 30177 . . . . . . . . . . . . . . . 16 (𝑅 FrSe 𝐴𝐹 Fn 𝐴)
101, 9bnj835 29876 . . . . . . . . . . . . . . 15 (𝜑𝐹 Fn 𝐴)
112, 10bnj832 29875 . . . . . . . . . . . . . 14 (𝜓𝐹 Fn 𝐴)
124, 11bnj835 29876 . . . . . . . . . . . . 13 (𝜒𝐹 Fn 𝐴)
133, 12bnj835 29876 . . . . . . . . . . . 12 (𝜃𝐹 Fn 𝐴)
141simp2bi 1069 . . . . . . . . . . . . . . 15 (𝜑𝐻 Fn 𝐴)
152, 14bnj832 29875 . . . . . . . . . . . . . 14 (𝜓𝐻 Fn 𝐴)
164, 15bnj835 29876 . . . . . . . . . . . . 13 (𝜒𝐻 Fn 𝐴)
173, 16bnj835 29876 . . . . . . . . . . . 12 (𝜃𝐻 Fn 𝐴)
18 bnj213 29999 . . . . . . . . . . . . 13 pred(𝑦, 𝐴, 𝑅) ⊆ 𝐴
1918a1i 11 . . . . . . . . . . . 12 (𝜃 → pred(𝑦, 𝐴, 𝑅) ⊆ 𝐴)
203simp3bi 1070 . . . . . . . . . . . . . . . . 17 (𝜃 → ∀𝑧𝐷 ¬ 𝑧𝑅𝑦)
2120bnj1211 29915 . . . . . . . . . . . . . . . 16 (𝜃 → ∀𝑧(𝑧𝐷 → ¬ 𝑧𝑅𝑦))
22 con2b 347 . . . . . . . . . . . . . . . . 17 ((𝑧𝐷 → ¬ 𝑧𝑅𝑦) ↔ (𝑧𝑅𝑦 → ¬ 𝑧𝐷))
2322albii 1736 . . . . . . . . . . . . . . . 16 (∀𝑧(𝑧𝐷 → ¬ 𝑧𝑅𝑦) ↔ ∀𝑧(𝑧𝑅𝑦 → ¬ 𝑧𝐷))
2421, 23sylib 206 . . . . . . . . . . . . . . 15 (𝜃 → ∀𝑧(𝑧𝑅𝑦 → ¬ 𝑧𝐷))
25 bnj1418 30155 . . . . . . . . . . . . . . . . 17 (𝑧 ∈ pred(𝑦, 𝐴, 𝑅) → 𝑧𝑅𝑦)
2625imim1i 60 . . . . . . . . . . . . . . . 16 ((𝑧𝑅𝑦 → ¬ 𝑧𝐷) → (𝑧 ∈ pred(𝑦, 𝐴, 𝑅) → ¬ 𝑧𝐷))
2726alimi 1729 . . . . . . . . . . . . . . 15 (∀𝑧(𝑧𝑅𝑦 → ¬ 𝑧𝐷) → ∀𝑧(𝑧 ∈ pred(𝑦, 𝐴, 𝑅) → ¬ 𝑧𝐷))
2824, 27syl 17 . . . . . . . . . . . . . 14 (𝜃 → ∀𝑧(𝑧 ∈ pred(𝑦, 𝐴, 𝑅) → ¬ 𝑧𝐷))
2928bnj1142 29907 . . . . . . . . . . . . 13 (𝜃 → ∀𝑧 ∈ pred (𝑦, 𝐴, 𝑅) ¬ 𝑧𝐷)
30 bnj1523.8 . . . . . . . . . . . . . 14 𝐷 = {𝑥𝐴 ∣ (𝐹𝑥) ≠ (𝐻𝑥)}
315bnj1309 30137 . . . . . . . . . . . . . . . . . . 19 (𝑤𝐵 → ∀𝑥 𝑤𝐵)
327, 31bnj1307 30138 . . . . . . . . . . . . . . . . . 18 (𝑤𝐶 → ∀𝑥 𝑤𝐶)
3332nfcii 2741 . . . . . . . . . . . . . . . . 17 𝑥𝐶
3433nfuni 4372 . . . . . . . . . . . . . . . 16 𝑥 𝐶
358, 34nfcxfr 2748 . . . . . . . . . . . . . . 15 𝑥𝐹
3635nfcrii 2743 . . . . . . . . . . . . . 14 (𝑤𝐹 → ∀𝑥 𝑤𝐹)
3730, 36bnj1534 29970 . . . . . . . . . . . . 13 𝐷 = {𝑧𝐴 ∣ (𝐹𝑧) ≠ (𝐻𝑧)}
3829, 18, 37bnj1533 29969 . . . . . . . . . . . 12 (𝜃 → ∀𝑧 ∈ pred (𝑦, 𝐴, 𝑅)(𝐹𝑧) = (𝐻𝑧))
3913, 17, 19, 38bnj1536 29971 . . . . . . . . . . 11 (𝜃 → (𝐹 ↾ pred(𝑦, 𝐴, 𝑅)) = (𝐻 ↾ pred(𝑦, 𝐴, 𝑅)))
4039opeq2d 4341 . . . . . . . . . 10 (𝜃 → ⟨𝑦, (𝐹 ↾ pred(𝑦, 𝐴, 𝑅))⟩ = ⟨𝑦, (𝐻 ↾ pred(𝑦, 𝐴, 𝑅))⟩)
4140fveq2d 6091 . . . . . . . . 9 (𝜃 → (𝐺‘⟨𝑦, (𝐹 ↾ pred(𝑦, 𝐴, 𝑅))⟩) = (𝐺‘⟨𝑦, (𝐻 ↾ pred(𝑦, 𝐴, 𝑅))⟩))
425, 6, 7, 8bnj1500 30183 . . . . . . . . . . . . . . 15 (𝑅 FrSe 𝐴 → ∀𝑥𝐴 (𝐹𝑥) = (𝐺‘⟨𝑥, (𝐹 ↾ pred(𝑥, 𝐴, 𝑅))⟩))
431, 42bnj835 29876 . . . . . . . . . . . . . 14 (𝜑 → ∀𝑥𝐴 (𝐹𝑥) = (𝐺‘⟨𝑥, (𝐹 ↾ pred(𝑥, 𝐴, 𝑅))⟩))
442, 43bnj832 29875 . . . . . . . . . . . . 13 (𝜓 → ∀𝑥𝐴 (𝐹𝑥) = (𝐺‘⟨𝑥, (𝐹 ↾ pred(𝑥, 𝐴, 𝑅))⟩))
454, 44bnj835 29876 . . . . . . . . . . . 12 (𝜒 → ∀𝑥𝐴 (𝐹𝑥) = (𝐺‘⟨𝑥, (𝐹 ↾ pred(𝑥, 𝐴, 𝑅))⟩))
4645, 36bnj1529 30185 . . . . . . . . . . 11 (𝜒 → ∀𝑦𝐴 (𝐹𝑦) = (𝐺‘⟨𝑦, (𝐹 ↾ pred(𝑦, 𝐴, 𝑅))⟩))
473, 46bnj835 29876 . . . . . . . . . 10 (𝜃 → ∀𝑦𝐴 (𝐹𝑦) = (𝐺‘⟨𝑦, (𝐹 ↾ pred(𝑦, 𝐴, 𝑅))⟩))
4830bnj21 29830 . . . . . . . . . . 11 𝐷𝐴
493simp2bi 1069 . . . . . . . . . . 11 (𝜃𝑦𝐷)
5048, 49bnj1213 29916 . . . . . . . . . 10 (𝜃𝑦𝐴)
5147, 50bnj1294 29935 . . . . . . . . 9 (𝜃 → (𝐹𝑦) = (𝐺‘⟨𝑦, (𝐹 ↾ pred(𝑦, 𝐴, 𝑅))⟩))
521simp3bi 1070 . . . . . . . . . . . . . 14 (𝜑 → ∀𝑥𝐴 (𝐻𝑥) = (𝐺‘⟨𝑥, (𝐻 ↾ pred(𝑥, 𝐴, 𝑅))⟩))
532, 52bnj832 29875 . . . . . . . . . . . . 13 (𝜓 → ∀𝑥𝐴 (𝐻𝑥) = (𝐺‘⟨𝑥, (𝐻 ↾ pred(𝑥, 𝐴, 𝑅))⟩))
544, 53bnj835 29876 . . . . . . . . . . . 12 (𝜒 → ∀𝑥𝐴 (𝐻𝑥) = (𝐺‘⟨𝑥, (𝐻 ↾ pred(𝑥, 𝐴, 𝑅))⟩))
55 ax-5 1826 . . . . . . . . . . . 12 (𝑣𝐻 → ∀𝑥 𝑣𝐻)
5654, 55bnj1529 30185 . . . . . . . . . . 11 (𝜒 → ∀𝑦𝐴 (𝐻𝑦) = (𝐺‘⟨𝑦, (𝐻 ↾ pred(𝑦, 𝐴, 𝑅))⟩))
573, 56bnj835 29876 . . . . . . . . . 10 (𝜃 → ∀𝑦𝐴 (𝐻𝑦) = (𝐺‘⟨𝑦, (𝐻 ↾ pred(𝑦, 𝐴, 𝑅))⟩))
5857, 50bnj1294 29935 . . . . . . . . 9 (𝜃 → (𝐻𝑦) = (𝐺‘⟨𝑦, (𝐻 ↾ pred(𝑦, 𝐴, 𝑅))⟩))
5941, 51, 583eqtr4d 2653 . . . . . . . 8 (𝜃 → (𝐹𝑦) = (𝐻𝑦))
6030, 36bnj1534 29970 . . . . . . . . . . 11 𝐷 = {𝑦𝐴 ∣ (𝐹𝑦) ≠ (𝐻𝑦)}
6160bnj1538 29972 . . . . . . . . . 10 (𝑦𝐷 → (𝐹𝑦) ≠ (𝐻𝑦))
623, 61bnj836 29877 . . . . . . . . 9 (𝜃 → (𝐹𝑦) ≠ (𝐻𝑦))
6362neneqd 2786 . . . . . . . 8 (𝜃 → ¬ (𝐹𝑦) = (𝐻𝑦))
6459, 63pm2.65i 183 . . . . . . 7 ¬ 𝜃
6564nex 1721 . . . . . 6 ¬ ∃𝑦𝜃
661simp1bi 1068 . . . . . . . . . 10 (𝜑𝑅 FrSe 𝐴)
672, 66bnj832 29875 . . . . . . . . 9 (𝜓𝑅 FrSe 𝐴)
684, 67bnj835 29876 . . . . . . . 8 (𝜒𝑅 FrSe 𝐴)
6948a1i 11 . . . . . . . 8 (𝜒𝐷𝐴)
704simp2bi 1069 . . . . . . . . . 10 (𝜒𝑥𝐴)
714simp3bi 1070 . . . . . . . . . 10 (𝜒 → (𝐹𝑥) ≠ (𝐻𝑥))
7230rabeq2i 3169 . . . . . . . . . 10 (𝑥𝐷 ↔ (𝑥𝐴 ∧ (𝐹𝑥) ≠ (𝐻𝑥)))
7370, 71, 72sylanbrc 694 . . . . . . . . 9 (𝜒𝑥𝐷)
74 ne0i 3879 . . . . . . . . 9 (𝑥𝐷𝐷 ≠ ∅)
7573, 74syl 17 . . . . . . . 8 (𝜒𝐷 ≠ ∅)
76 bnj69 30125 . . . . . . . 8 ((𝑅 FrSe 𝐴𝐷𝐴𝐷 ≠ ∅) → ∃𝑦𝐷𝑧𝐷 ¬ 𝑧𝑅𝑦)
7768, 69, 75, 76syl3anc 1317 . . . . . . 7 (𝜒 → ∃𝑦𝐷𝑧𝐷 ¬ 𝑧𝑅𝑦)
7877, 3bnj1209 29914 . . . . . 6 (𝜒 → ∃𝑦𝜃)
7965, 78mto 186 . . . . 5 ¬ 𝜒
8079nex 1721 . . . 4 ¬ ∃𝑥𝜒
812simprbi 478 . . . . . 6 (𝜓𝐹𝐻)
8211, 15, 81, 36bnj1542 29974 . . . . 5 (𝜓 → ∃𝑥𝐴 (𝐹𝑥) ≠ (𝐻𝑥))
835, 6, 7, 8, 1, 2bnj1525 30184 . . . . 5 (𝜓 → ∀𝑥𝜓)
8482, 4, 83bnj1521 29968 . . . 4 (𝜓 → ∃𝑥𝜒)
8580, 84mto 186 . . 3 ¬ 𝜓
862, 85bnj1541 29973 . 2 (𝜑𝐹 = 𝐻)
871, 86sylbir 223 1 ((𝑅 FrSe 𝐴𝐻 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐻𝑥) = (𝐺‘⟨𝑥, (𝐻 ↾ pred(𝑥, 𝐴, 𝑅))⟩)) → 𝐹 = 𝐻)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 194  wa 382  w3a 1030  wal 1472   = wceq 1474  wex 1694  wcel 1976  {cab 2595  wne 2779  wral 2895  wrex 2896  {crab 2899  wss 3539  c0 3873  cop 4130   cuni 4366   class class class wbr 4577  cres 5029   Fn wfn 5784  cfv 5789   predc-bnj14 29800   FrSe w-bnj15 29804
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1712  ax-4 1727  ax-5 1826  ax-6 1874  ax-7 1921  ax-8 1978  ax-9 1985  ax-10 2005  ax-11 2020  ax-12 2033  ax-13 2233  ax-ext 2589  ax-rep 4693  ax-sep 4703  ax-nul 4711  ax-pow 4763  ax-pr 4827  ax-un 6824  ax-reg 8357  ax-inf2 8398
This theorem depends on definitions:  df-bi 195  df-or 383  df-an 384  df-3or 1031  df-3an 1032  df-tru 1477  df-fal 1480  df-ex 1695  df-nf 1700  df-sb 1867  df-eu 2461  df-mo 2462  df-clab 2596  df-cleq 2602  df-clel 2605  df-nfc 2739  df-ne 2781  df-ral 2900  df-rex 2901  df-reu 2902  df-rab 2904  df-v 3174  df-sbc 3402  df-csb 3499  df-dif 3542  df-un 3544  df-in 3546  df-ss 3553  df-pss 3555  df-nul 3874  df-if 4036  df-pw 4109  df-sn 4125  df-pr 4127  df-tp 4129  df-op 4131  df-uni 4367  df-iun 4451  df-br 4578  df-opab 4638  df-mpt 4639  df-tr 4675  df-eprel 4938  df-id 4942  df-po 4948  df-so 4949  df-fr 4986  df-we 4988  df-xp 5033  df-rel 5034  df-cnv 5035  df-co 5036  df-dm 5037  df-rn 5038  df-res 5039  df-ima 5040  df-ord 5628  df-on 5629  df-lim 5630  df-suc 5631  df-iota 5753  df-fun 5791  df-fn 5792  df-f 5793  df-f1 5794  df-fo 5795  df-f1o 5796  df-fv 5797  df-om 6935  df-1o 7424  df-bnj17 29799  df-bnj14 29801  df-bnj13 29803  df-bnj15 29805  df-bnj18 29807  df-bnj19 29809
This theorem is referenced by:  bnj1522  30187
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