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Theorem relexpsucnnl 13979
Description: A reduction for relation exponentiation to the left. (Contributed by RP, 23-May-2020.)
Assertion
Ref Expression
relexpsucnnl ((𝑅𝑉𝑁 ∈ ℕ) → (𝑅𝑟(𝑁 + 1)) = (𝑅 ∘ (𝑅𝑟𝑁)))

Proof of Theorem relexpsucnnl
Dummy variables 𝑛 𝑚 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 oveq1 6799 . . . . . 6 (𝑛 = 1 → (𝑛 + 1) = (1 + 1))
21oveq2d 6808 . . . . 5 (𝑛 = 1 → (𝑅𝑟(𝑛 + 1)) = (𝑅𝑟(1 + 1)))
3 oveq2 6800 . . . . . 6 (𝑛 = 1 → (𝑅𝑟𝑛) = (𝑅𝑟1))
43coeq2d 5423 . . . . 5 (𝑛 = 1 → (𝑅 ∘ (𝑅𝑟𝑛)) = (𝑅 ∘ (𝑅𝑟1)))
52, 4eqeq12d 2785 . . . 4 (𝑛 = 1 → ((𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛)) ↔ (𝑅𝑟(1 + 1)) = (𝑅 ∘ (𝑅𝑟1))))
65imbi2d 329 . . 3 (𝑛 = 1 → ((𝑅𝑉 → (𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛))) ↔ (𝑅𝑉 → (𝑅𝑟(1 + 1)) = (𝑅 ∘ (𝑅𝑟1)))))
7 oveq1 6799 . . . . . 6 (𝑛 = 𝑚 → (𝑛 + 1) = (𝑚 + 1))
87oveq2d 6808 . . . . 5 (𝑛 = 𝑚 → (𝑅𝑟(𝑛 + 1)) = (𝑅𝑟(𝑚 + 1)))
9 oveq2 6800 . . . . . 6 (𝑛 = 𝑚 → (𝑅𝑟𝑛) = (𝑅𝑟𝑚))
109coeq2d 5423 . . . . 5 (𝑛 = 𝑚 → (𝑅 ∘ (𝑅𝑟𝑛)) = (𝑅 ∘ (𝑅𝑟𝑚)))
118, 10eqeq12d 2785 . . . 4 (𝑛 = 𝑚 → ((𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛)) ↔ (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))))
1211imbi2d 329 . . 3 (𝑛 = 𝑚 → ((𝑅𝑉 → (𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛))) ↔ (𝑅𝑉 → (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚)))))
13 oveq1 6799 . . . . . 6 (𝑛 = (𝑚 + 1) → (𝑛 + 1) = ((𝑚 + 1) + 1))
1413oveq2d 6808 . . . . 5 (𝑛 = (𝑚 + 1) → (𝑅𝑟(𝑛 + 1)) = (𝑅𝑟((𝑚 + 1) + 1)))
15 oveq2 6800 . . . . . 6 (𝑛 = (𝑚 + 1) → (𝑅𝑟𝑛) = (𝑅𝑟(𝑚 + 1)))
1615coeq2d 5423 . . . . 5 (𝑛 = (𝑚 + 1) → (𝑅 ∘ (𝑅𝑟𝑛)) = (𝑅 ∘ (𝑅𝑟(𝑚 + 1))))
1714, 16eqeq12d 2785 . . . 4 (𝑛 = (𝑚 + 1) → ((𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛)) ↔ (𝑅𝑟((𝑚 + 1) + 1)) = (𝑅 ∘ (𝑅𝑟(𝑚 + 1)))))
1817imbi2d 329 . . 3 (𝑛 = (𝑚 + 1) → ((𝑅𝑉 → (𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛))) ↔ (𝑅𝑉 → (𝑅𝑟((𝑚 + 1) + 1)) = (𝑅 ∘ (𝑅𝑟(𝑚 + 1))))))
19 oveq1 6799 . . . . . 6 (𝑛 = 𝑁 → (𝑛 + 1) = (𝑁 + 1))
2019oveq2d 6808 . . . . 5 (𝑛 = 𝑁 → (𝑅𝑟(𝑛 + 1)) = (𝑅𝑟(𝑁 + 1)))
21 oveq2 6800 . . . . . 6 (𝑛 = 𝑁 → (𝑅𝑟𝑛) = (𝑅𝑟𝑁))
2221coeq2d 5423 . . . . 5 (𝑛 = 𝑁 → (𝑅 ∘ (𝑅𝑟𝑛)) = (𝑅 ∘ (𝑅𝑟𝑁)))
2320, 22eqeq12d 2785 . . . 4 (𝑛 = 𝑁 → ((𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛)) ↔ (𝑅𝑟(𝑁 + 1)) = (𝑅 ∘ (𝑅𝑟𝑁))))
2423imbi2d 329 . . 3 (𝑛 = 𝑁 → ((𝑅𝑉 → (𝑅𝑟(𝑛 + 1)) = (𝑅 ∘ (𝑅𝑟𝑛))) ↔ (𝑅𝑉 → (𝑅𝑟(𝑁 + 1)) = (𝑅 ∘ (𝑅𝑟𝑁)))))
25 relexp1g 13973 . . . . 5 (𝑅𝑉 → (𝑅𝑟1) = 𝑅)
2625coeq1d 5422 . . . 4 (𝑅𝑉 → ((𝑅𝑟1) ∘ 𝑅) = (𝑅𝑅))
27 1nn 11232 . . . . 5 1 ∈ ℕ
28 relexpsucnnr 13972 . . . . 5 ((𝑅𝑉 ∧ 1 ∈ ℕ) → (𝑅𝑟(1 + 1)) = ((𝑅𝑟1) ∘ 𝑅))
2927, 28mpan2 663 . . . 4 (𝑅𝑉 → (𝑅𝑟(1 + 1)) = ((𝑅𝑟1) ∘ 𝑅))
3025coeq2d 5423 . . . 4 (𝑅𝑉 → (𝑅 ∘ (𝑅𝑟1)) = (𝑅𝑅))
3126, 29, 303eqtr4d 2814 . . 3 (𝑅𝑉 → (𝑅𝑟(1 + 1)) = (𝑅 ∘ (𝑅𝑟1)))
32 coeq1 5418 . . . . . . . . 9 ((𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚)) → ((𝑅𝑟(𝑚 + 1)) ∘ 𝑅) = ((𝑅 ∘ (𝑅𝑟𝑚)) ∘ 𝑅))
33 coass 5798 . . . . . . . . 9 ((𝑅 ∘ (𝑅𝑟𝑚)) ∘ 𝑅) = (𝑅 ∘ ((𝑅𝑟𝑚) ∘ 𝑅))
3432, 33syl6eq 2820 . . . . . . . 8 ((𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚)) → ((𝑅𝑟(𝑚 + 1)) ∘ 𝑅) = (𝑅 ∘ ((𝑅𝑟𝑚) ∘ 𝑅)))
3534adantl 467 . . . . . . 7 (((𝑅𝑉𝑚 ∈ ℕ) ∧ (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))) → ((𝑅𝑟(𝑚 + 1)) ∘ 𝑅) = (𝑅 ∘ ((𝑅𝑟𝑚) ∘ 𝑅)))
36 simpl 468 . . . . . . . 8 (((𝑅𝑉𝑚 ∈ ℕ) ∧ (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))) → (𝑅𝑉𝑚 ∈ ℕ))
37 peano2nn 11233 . . . . . . . . 9 (𝑚 ∈ ℕ → (𝑚 + 1) ∈ ℕ)
3837anim2i 595 . . . . . . . 8 ((𝑅𝑉𝑚 ∈ ℕ) → (𝑅𝑉 ∧ (𝑚 + 1) ∈ ℕ))
39 relexpsucnnr 13972 . . . . . . . 8 ((𝑅𝑉 ∧ (𝑚 + 1) ∈ ℕ) → (𝑅𝑟((𝑚 + 1) + 1)) = ((𝑅𝑟(𝑚 + 1)) ∘ 𝑅))
4036, 38, 393syl 18 . . . . . . 7 (((𝑅𝑉𝑚 ∈ ℕ) ∧ (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))) → (𝑅𝑟((𝑚 + 1) + 1)) = ((𝑅𝑟(𝑚 + 1)) ∘ 𝑅))
41 relexpsucnnr 13972 . . . . . . . . 9 ((𝑅𝑉𝑚 ∈ ℕ) → (𝑅𝑟(𝑚 + 1)) = ((𝑅𝑟𝑚) ∘ 𝑅))
4241adantr 466 . . . . . . . 8 (((𝑅𝑉𝑚 ∈ ℕ) ∧ (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))) → (𝑅𝑟(𝑚 + 1)) = ((𝑅𝑟𝑚) ∘ 𝑅))
4342coeq2d 5423 . . . . . . 7 (((𝑅𝑉𝑚 ∈ ℕ) ∧ (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))) → (𝑅 ∘ (𝑅𝑟(𝑚 + 1))) = (𝑅 ∘ ((𝑅𝑟𝑚) ∘ 𝑅)))
4435, 40, 433eqtr4d 2814 . . . . . 6 (((𝑅𝑉𝑚 ∈ ℕ) ∧ (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))) → (𝑅𝑟((𝑚 + 1) + 1)) = (𝑅 ∘ (𝑅𝑟(𝑚 + 1))))
4544ex 397 . . . . 5 ((𝑅𝑉𝑚 ∈ ℕ) → ((𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚)) → (𝑅𝑟((𝑚 + 1) + 1)) = (𝑅 ∘ (𝑅𝑟(𝑚 + 1)))))
4645expcom 398 . . . 4 (𝑚 ∈ ℕ → (𝑅𝑉 → ((𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚)) → (𝑅𝑟((𝑚 + 1) + 1)) = (𝑅 ∘ (𝑅𝑟(𝑚 + 1))))))
4746a2d 29 . . 3 (𝑚 ∈ ℕ → ((𝑅𝑉 → (𝑅𝑟(𝑚 + 1)) = (𝑅 ∘ (𝑅𝑟𝑚))) → (𝑅𝑉 → (𝑅𝑟((𝑚 + 1) + 1)) = (𝑅 ∘ (𝑅𝑟(𝑚 + 1))))))
486, 12, 18, 24, 31, 47nnind 11239 . 2 (𝑁 ∈ ℕ → (𝑅𝑉 → (𝑅𝑟(𝑁 + 1)) = (𝑅 ∘ (𝑅𝑟𝑁))))
4948impcom 394 1 ((𝑅𝑉𝑁 ∈ ℕ) → (𝑅𝑟(𝑁 + 1)) = (𝑅 ∘ (𝑅𝑟𝑁)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 382   = wceq 1630  wcel 2144  ccom 5253  (class class class)co 6792  1c1 10138   + caddc 10140  cn 11221  𝑟crelexp 13967
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1869  ax-4 1884  ax-5 1990  ax-6 2056  ax-7 2092  ax-8 2146  ax-9 2153  ax-10 2173  ax-11 2189  ax-12 2202  ax-13 2407  ax-ext 2750  ax-sep 4912  ax-nul 4920  ax-pow 4971  ax-pr 5034  ax-un 7095  ax-cnex 10193  ax-resscn 10194  ax-1cn 10195  ax-icn 10196  ax-addcl 10197  ax-addrcl 10198  ax-mulcl 10199  ax-mulrcl 10200  ax-mulcom 10201  ax-addass 10202  ax-mulass 10203  ax-distr 10204  ax-i2m1 10205  ax-1ne0 10206  ax-1rid 10207  ax-rnegex 10208  ax-rrecex 10209  ax-cnre 10210  ax-pre-lttri 10211  ax-pre-lttrn 10212  ax-pre-ltadd 10213  ax-pre-mulgt0 10214
This theorem depends on definitions:  df-bi 197  df-an 383  df-or 827  df-3or 1071  df-3an 1072  df-tru 1633  df-ex 1852  df-nf 1857  df-sb 2049  df-eu 2621  df-mo 2622  df-clab 2757  df-cleq 2763  df-clel 2766  df-nfc 2901  df-ne 2943  df-nel 3046  df-ral 3065  df-rex 3066  df-reu 3067  df-rab 3069  df-v 3351  df-sbc 3586  df-csb 3681  df-dif 3724  df-un 3726  df-in 3728  df-ss 3735  df-pss 3737  df-nul 4062  df-if 4224  df-pw 4297  df-sn 4315  df-pr 4317  df-tp 4319  df-op 4321  df-uni 4573  df-iun 4654  df-br 4785  df-opab 4845  df-mpt 4862  df-tr 4885  df-id 5157  df-eprel 5162  df-po 5170  df-so 5171  df-fr 5208  df-we 5210  df-xp 5255  df-rel 5256  df-cnv 5257  df-co 5258  df-dm 5259  df-rn 5260  df-res 5261  df-ima 5262  df-pred 5823  df-ord 5869  df-on 5870  df-lim 5871  df-suc 5872  df-iota 5994  df-fun 6033  df-fn 6034  df-f 6035  df-f1 6036  df-fo 6037  df-f1o 6038  df-fv 6039  df-riota 6753  df-ov 6795  df-oprab 6796  df-mpt2 6797  df-om 7212  df-2nd 7315  df-wrecs 7558  df-recs 7620  df-rdg 7658  df-er 7895  df-en 8109  df-dom 8110  df-sdom 8111  df-pnf 10277  df-mnf 10278  df-xr 10279  df-ltxr 10280  df-le 10281  df-sub 10469  df-neg 10470  df-nn 11222  df-n0 11494  df-z 11579  df-uz 11888  df-seq 13008  df-relexp 13968
This theorem is referenced by:  relexpsucl  13980  relexpcnv  13982  relexpaddnn  13998  trclfvcom  38534  trclimalb2  38537
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