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Theorem iseqf1olemmo 10448
Description: Lemma for seq3f1o 10460. Showing that 𝑄 is one-to-one. (Contributed by Jim Kingdon, 27-Aug-2022.)
Hypotheses
Ref Expression
iseqf1olemqf.k (𝜑𝐾 ∈ (𝑀...𝑁))
iseqf1olemqf.j (𝜑𝐽:(𝑀...𝑁)–1-1-onto→(𝑀...𝑁))
iseqf1olemqf.q 𝑄 = (𝑢 ∈ (𝑀...𝑁) ↦ if(𝑢 ∈ (𝐾...(𝐽𝐾)), if(𝑢 = 𝐾, 𝐾, (𝐽‘(𝑢 − 1))), (𝐽𝑢)))
iseqf1olemmo.a (𝜑𝐴 ∈ (𝑀...𝑁))
iseqf1olemmo.b (𝜑𝐵 ∈ (𝑀...𝑁))
iseqf1olemmo.eq (𝜑 → (𝑄𝐴) = (𝑄𝐵))
Assertion
Ref Expression
iseqf1olemmo (𝜑𝐴 = 𝐵)
Distinct variable groups:   𝑢,𝐴   𝑢,𝐵   𝑢,𝐽   𝑢,𝐾   𝑢,𝑀   𝑢,𝑁
Allowed substitution hints:   𝜑(𝑢)   𝑄(𝑢)

Proof of Theorem iseqf1olemmo
StepHypRef Expression
1 iseqf1olemqf.k . . . . 5 (𝜑𝐾 ∈ (𝑀...𝑁))
21ad2antrr 485 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐾 ∈ (𝑀...𝑁))
3 iseqf1olemqf.j . . . . 5 (𝜑𝐽:(𝑀...𝑁)–1-1-onto→(𝑀...𝑁))
43ad2antrr 485 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐽:(𝑀...𝑁)–1-1-onto→(𝑀...𝑁))
5 iseqf1olemmo.a . . . . 5 (𝜑𝐴 ∈ (𝑀...𝑁))
65ad2antrr 485 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 ∈ (𝑀...𝑁))
7 iseqf1olemmo.b . . . . 5 (𝜑𝐵 ∈ (𝑀...𝑁))
87ad2antrr 485 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐵 ∈ (𝑀...𝑁))
9 iseqf1olemmo.eq . . . . 5 (𝜑 → (𝑄𝐴) = (𝑄𝐵))
109ad2antrr 485 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → (𝑄𝐴) = (𝑄𝐵))
11 iseqf1olemqf.q . . . 4 𝑄 = (𝑢 ∈ (𝑀...𝑁) ↦ if(𝑢 ∈ (𝐾...(𝐽𝐾)), if(𝑢 = 𝐾, 𝐾, (𝐽‘(𝑢 − 1))), (𝐽𝑢)))
12 simplr 525 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 ∈ (𝐾...(𝐽𝐾)))
13 simpr 109 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐵 ∈ (𝐾...(𝐽𝐾)))
142, 4, 6, 8, 10, 11, 12, 13iseqf1olemab 10445 . . 3 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 = 𝐵)
15 simplr 525 . . . . 5 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 ∈ (𝐾...(𝐽𝐾)))
16 simpr 109 . . . . 5 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → ¬ 𝐵 ∈ (𝐾...(𝐽𝐾)))
1715, 16jca 304 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → (𝐴 ∈ (𝐾...(𝐽𝐾)) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))))
181, 3, 5, 7, 9, 11iseqf1olemnab 10444 . . . . 5 (𝜑 → ¬ (𝐴 ∈ (𝐾...(𝐽𝐾)) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))))
1918ad2antrr 485 . . . 4 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → ¬ (𝐴 ∈ (𝐾...(𝐽𝐾)) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))))
2017, 19pm2.21dd 615 . . 3 (((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 = 𝐵)
21 elfzelz 9981 . . . . . . 7 (𝐵 ∈ (𝑀...𝑁) → 𝐵 ∈ ℤ)
227, 21syl 14 . . . . . 6 (𝜑𝐵 ∈ ℤ)
23 elfzelz 9981 . . . . . . 7 (𝐾 ∈ (𝑀...𝑁) → 𝐾 ∈ ℤ)
241, 23syl 14 . . . . . 6 (𝜑𝐾 ∈ ℤ)
25 f1ocnv 5455 . . . . . . . . 9 (𝐽:(𝑀...𝑁)–1-1-onto→(𝑀...𝑁) → 𝐽:(𝑀...𝑁)–1-1-onto→(𝑀...𝑁))
26 f1of 5442 . . . . . . . . 9 (𝐽:(𝑀...𝑁)–1-1-onto→(𝑀...𝑁) → 𝐽:(𝑀...𝑁)⟶(𝑀...𝑁))
273, 25, 263syl 17 . . . . . . . 8 (𝜑𝐽:(𝑀...𝑁)⟶(𝑀...𝑁))
2827, 1ffvelrnd 5632 . . . . . . 7 (𝜑 → (𝐽𝐾) ∈ (𝑀...𝑁))
29 elfzelz 9981 . . . . . . 7 ((𝐽𝐾) ∈ (𝑀...𝑁) → (𝐽𝐾) ∈ ℤ)
3028, 29syl 14 . . . . . 6 (𝜑 → (𝐽𝐾) ∈ ℤ)
31 fzdcel 9996 . . . . . 6 ((𝐵 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ (𝐽𝐾) ∈ ℤ) → DECID 𝐵 ∈ (𝐾...(𝐽𝐾)))
3222, 24, 30, 31syl3anc 1233 . . . . 5 (𝜑DECID 𝐵 ∈ (𝐾...(𝐽𝐾)))
33 exmiddc 831 . . . . 5 (DECID 𝐵 ∈ (𝐾...(𝐽𝐾)) → (𝐵 ∈ (𝐾...(𝐽𝐾)) ∨ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))))
3432, 33syl 14 . . . 4 (𝜑 → (𝐵 ∈ (𝐾...(𝐽𝐾)) ∨ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))))
3534adantr 274 . . 3 ((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) → (𝐵 ∈ (𝐾...(𝐽𝐾)) ∨ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))))
3614, 20, 35mpjaodan 793 . 2 ((𝜑𝐴 ∈ (𝐾...(𝐽𝐾))) → 𝐴 = 𝐵)
37 simpr 109 . . . . 5 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐵 ∈ (𝐾...(𝐽𝐾)))
38 simplr 525 . . . . 5 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → ¬ 𝐴 ∈ (𝐾...(𝐽𝐾)))
3937, 38jca 304 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → (𝐵 ∈ (𝐾...(𝐽𝐾)) ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))))
409eqcomd 2176 . . . . . 6 (𝜑 → (𝑄𝐵) = (𝑄𝐴))
411, 3, 7, 5, 40, 11iseqf1olemnab 10444 . . . . 5 (𝜑 → ¬ (𝐵 ∈ (𝐾...(𝐽𝐾)) ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))))
4241ad2antrr 485 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → ¬ (𝐵 ∈ (𝐾...(𝐽𝐾)) ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))))
4339, 42pm2.21dd 615 . . 3 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 = 𝐵)
441ad2antrr 485 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐾 ∈ (𝑀...𝑁))
453ad2antrr 485 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐽:(𝑀...𝑁)–1-1-onto→(𝑀...𝑁))
465ad2antrr 485 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 ∈ (𝑀...𝑁))
477ad2antrr 485 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐵 ∈ (𝑀...𝑁))
489ad2antrr 485 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → (𝑄𝐴) = (𝑄𝐵))
49 simplr 525 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → ¬ 𝐴 ∈ (𝐾...(𝐽𝐾)))
50 simpr 109 . . . 4 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → ¬ 𝐵 ∈ (𝐾...(𝐽𝐾)))
5144, 45, 46, 47, 48, 11, 49, 50iseqf1olemnanb 10446 . . 3 (((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) ∧ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))) → 𝐴 = 𝐵)
5234adantr 274 . . 3 ((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) → (𝐵 ∈ (𝐾...(𝐽𝐾)) ∨ ¬ 𝐵 ∈ (𝐾...(𝐽𝐾))))
5343, 51, 52mpjaodan 793 . 2 ((𝜑 ∧ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))) → 𝐴 = 𝐵)
54 elfzelz 9981 . . . . 5 (𝐴 ∈ (𝑀...𝑁) → 𝐴 ∈ ℤ)
555, 54syl 14 . . . 4 (𝜑𝐴 ∈ ℤ)
56 fzdcel 9996 . . . 4 ((𝐴 ∈ ℤ ∧ 𝐾 ∈ ℤ ∧ (𝐽𝐾) ∈ ℤ) → DECID 𝐴 ∈ (𝐾...(𝐽𝐾)))
5755, 24, 30, 56syl3anc 1233 . . 3 (𝜑DECID 𝐴 ∈ (𝐾...(𝐽𝐾)))
58 exmiddc 831 . . 3 (DECID 𝐴 ∈ (𝐾...(𝐽𝐾)) → (𝐴 ∈ (𝐾...(𝐽𝐾)) ∨ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))))
5957, 58syl 14 . 2 (𝜑 → (𝐴 ∈ (𝐾...(𝐽𝐾)) ∨ ¬ 𝐴 ∈ (𝐾...(𝐽𝐾))))
6036, 53, 59mpjaodan 793 1 (𝜑𝐴 = 𝐵)
Colors of variables: wff set class
Syntax hints:  ¬ wn 3  wi 4  wa 103  wo 703  DECID wdc 829   = wceq 1348  wcel 2141  ifcif 3526  cmpt 4050  ccnv 4610  wf 5194  1-1-ontowf1o 5197  cfv 5198  (class class class)co 5853  1c1 7775  cmin 8090  cz 9212  ...cfz 9965
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 609  ax-in2 610  ax-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-13 2143  ax-14 2144  ax-ext 2152  ax-sep 4107  ax-pow 4160  ax-pr 4194  ax-un 4418  ax-setind 4521  ax-cnex 7865  ax-resscn 7866  ax-1cn 7867  ax-1re 7868  ax-icn 7869  ax-addcl 7870  ax-addrcl 7871  ax-mulcl 7872  ax-addcom 7874  ax-addass 7876  ax-distr 7878  ax-i2m1 7879  ax-0lt1 7880  ax-0id 7882  ax-rnegex 7883  ax-cnre 7885  ax-pre-ltirr 7886  ax-pre-ltwlin 7887  ax-pre-lttrn 7888  ax-pre-ltadd 7890
This theorem depends on definitions:  df-bi 116  df-dc 830  df-3or 974  df-3an 975  df-tru 1351  df-fal 1354  df-nf 1454  df-sb 1756  df-eu 2022  df-mo 2023  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ne 2341  df-nel 2436  df-ral 2453  df-rex 2454  df-reu 2455  df-rab 2457  df-v 2732  df-sbc 2956  df-dif 3123  df-un 3125  df-in 3127  df-ss 3134  df-if 3527  df-pw 3568  df-sn 3589  df-pr 3590  df-op 3592  df-uni 3797  df-int 3832  df-br 3990  df-opab 4051  df-mpt 4052  df-id 4278  df-xp 4617  df-rel 4618  df-cnv 4619  df-co 4620  df-dm 4621  df-rn 4622  df-res 4623  df-ima 4624  df-iota 5160  df-fun 5200  df-fn 5201  df-f 5202  df-f1 5203  df-fo 5204  df-f1o 5205  df-fv 5206  df-riota 5809  df-ov 5856  df-oprab 5857  df-mpo 5858  df-pnf 7956  df-mnf 7957  df-xr 7958  df-ltxr 7959  df-le 7960  df-sub 8092  df-neg 8093  df-inn 8879  df-n0 9136  df-z 9213  df-uz 9488  df-fz 9966
This theorem is referenced by:  iseqf1olemqf1o  10449
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