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Theorem gpgedg2ov 48889
Description: The edges of the generalized Petersen graph GPG(N,K) between two outside vertices. (Contributed by AV, 15-Nov-2025.)
Hypotheses
Ref Expression
gpgedgiov.j 𝐽 = (1..^(⌈‘(𝑁 / 2)))
gpgedgiov.i 𝐼 = (0..^𝑁)
gpgedgiov.g 𝐺 = (𝑁 gPetersenGr 𝐾)
gpgedgiov.e 𝐸 = (Edg‘𝐺)
Assertion
Ref Expression
gpgedg2ov (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) ↔ 𝑋 = 𝑌))

Proof of Theorem gpgedg2ov
StepHypRef Expression
1 prcom 4700 . . . . . 6 {⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} = {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩}
21eleq1i 2856 . . . . 5 ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 ↔ {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸)
3 uzuzle35 12927 . . . . . . . . . 10 (𝑁 ∈ (ℤ‘5) → 𝑁 ∈ (ℤ‘3))
43anim1i 627 . . . . . . . . 9 ((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) → (𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽))
54adantr 486 . . . . . . . 8 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽))
65adantr 486 . . . . . . 7 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸) → (𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽))
7 c0ex 11215 . . . . . . . . . . . . 13 0 ∈ V
87a1i 11 . . . . . . . . . . . 12 (𝑌𝐼 → 0 ∈ V)
98anim1i 627 . . . . . . . . . . 11 ((𝑌𝐼𝑋𝐼) → (0 ∈ V ∧ 𝑋𝐼))
109ancoms 464 . . . . . . . . . 10 ((𝑋𝐼𝑌𝐼) → (0 ∈ V ∧ 𝑋𝐼))
11 op1stg 8004 . . . . . . . . . 10 ((0 ∈ V ∧ 𝑋𝐼) → (1st ‘⟨0, 𝑋⟩) = 0)
1210, 11syl 18 . . . . . . . . 9 ((𝑋𝐼𝑌𝐼) → (1st ‘⟨0, 𝑋⟩) = 0)
1312adantl 487 . . . . . . . 8 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (1st ‘⟨0, 𝑋⟩) = 0)
1413adantr 486 . . . . . . 7 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸) → (1st ‘⟨0, 𝑋⟩) = 0)
15 simpr 490 . . . . . . 7 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸) → {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸)
16 gpgedgiov.j . . . . . . . 8 𝐽 = (1..^(⌈‘(𝑁 / 2)))
17 gpgedgiov.g . . . . . . . 8 𝐺 = (𝑁 gPetersenGr 𝐾)
18 eqid 2765 . . . . . . . 8 (Vtx‘𝐺) = (Vtx‘𝐺)
19 gpgedgiov.e . . . . . . . 8 𝐸 = (Edg‘𝐺)
2016, 17, 18, 19gpgvtxedg0 48886 . . . . . . 7 (((𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽) ∧ (1st ‘⟨0, 𝑋⟩) = 0 ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩))
216, 14, 15, 20syl3anc 1398 . . . . . 6 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩))
2221ex 418 . . . . 5 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ({⟨0, 𝑋⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} ∈ 𝐸 → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩)))
232, 22biimtrid 245 . . . 4 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩)))
245adantr 486 . . . . . . . 8 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) → (𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽))
2513adantr 486 . . . . . . . 8 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) → (1st ‘⟨0, 𝑋⟩) = 0)
26 simpr 490 . . . . . . . 8 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) → {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)
2716, 17, 18, 19gpgvtxedg0 48886 . . . . . . . 8 (((𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽) ∧ (1st ‘⟨0, 𝑋⟩) = 0 ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩))
2824, 25, 26, 27syl3anc 1398 . . . . . . 7 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩))
2928ex 418 . . . . . 6 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ({⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸 → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩)))
30 ovex 7452 . . . . . . . . . . . . 13 ((𝑌 + 1) mod 𝑁) ∈ V
317, 30opth 5460 . . . . . . . . . . . 12 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ↔ (0 = 0 ∧ ((𝑌 + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁)))
323adantr 486 . . . . . . . . . . . . . . . . . 18 ((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) → 𝑁 ∈ (ℤ‘3))
3332adantr 486 . . . . . . . . . . . . . . . . 17 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → 𝑁 ∈ (ℤ‘3))
34 simpr 490 . . . . . . . . . . . . . . . . . 18 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (𝑋𝐼𝑌𝐼))
3534ancomd 467 . . . . . . . . . . . . . . . . 17 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (𝑌𝐼𝑋𝐼))
36 1zzd 12640 . . . . . . . . . . . . . . . . 17 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → 1 ∈ ℤ)
37 gpgedgiov.i . . . . . . . . . . . . . . . . . 18 𝐼 = (0..^𝑁)
3837modaddid 13961 . . . . . . . . . . . . . . . . 17 ((𝑁 ∈ (ℤ‘3) ∧ (𝑌𝐼𝑋𝐼) ∧ 1 ∈ ℤ) → (((𝑌 + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁) ↔ 𝑌 = 𝑋))
3933, 35, 36, 38syl3anc 1398 . . . . . . . . . . . . . . . 16 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((𝑌 + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁) ↔ 𝑌 = 𝑋))
4039biimpa 482 . . . . . . . . . . . . . . 15 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ((𝑌 + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁)) → 𝑌 = 𝑋)
4140eqcomd 2771 . . . . . . . . . . . . . 14 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ((𝑌 + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁)) → 𝑋 = 𝑌)
4241ex 418 . . . . . . . . . . . . 13 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((𝑌 + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁) → 𝑋 = 𝑌))
4342adantld 496 . . . . . . . . . . . 12 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((0 = 0 ∧ ((𝑌 + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁)) → 𝑋 = 𝑌))
4431, 43biimtrid 245 . . . . . . . . . . 11 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
4544imp 412 . . . . . . . . . 10 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩) → 𝑋 = 𝑌)
4645a1d 26 . . . . . . . . 9 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌))
4746ex 418 . . . . . . . 8 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)))
487, 30opth 5460 . . . . . . . . . . . 12 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ↔ (0 = 1 ∧ ((𝑌 + 1) mod 𝑁) = 𝑋))
49 0ne1 12327 . . . . . . . . . . . . . . 15 0 ≠ 1
50 eqneqall 2971 . . . . . . . . . . . . . . 15 (0 = 1 → (0 ≠ 1 → (((𝑌 + 1) mod 𝑁) = 𝑋 → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))))
5149, 50mpi 21 . . . . . . . . . . . . . 14 (0 = 1 → (((𝑌 + 1) mod 𝑁) = 𝑋 → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
5251imp 412 . . . . . . . . . . . . 13 ((0 = 1 ∧ ((𝑌 + 1) mod 𝑁) = 𝑋) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
5352a1i 11 . . . . . . . . . . . 12 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((0 = 1 ∧ ((𝑌 + 1) mod 𝑁) = 𝑋) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
5448, 53biimtrid 245 . . . . . . . . . . 11 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
5554imp 412 . . . . . . . . . 10 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
56 eqeq2 2777 . . . . . . . . . . . . 13 (⟨1, 𝑋⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩))
5756eqcoms 2773 . . . . . . . . . . . 12 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩))
5857adantl 487 . . . . . . . . . . 11 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩))
59 ovex 7452 . . . . . . . . . . . . . 14 ((𝑌 − 1) mod 𝑁) ∈ V
607, 59opth 5460 . . . . . . . . . . . . 13 (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩ ↔ (0 = 0 ∧ ((𝑌 − 1) mod 𝑁) = ((𝑌 + 1) mod 𝑁)))
61 simpr 490 . . . . . . . . . . . . . . . 16 ((𝑋𝐼𝑌𝐼) → 𝑌𝐼)
6237modm1nep1 48166 . . . . . . . . . . . . . . . 16 ((𝑁 ∈ (ℤ‘3) ∧ 𝑌𝐼) → ((𝑌 − 1) mod 𝑁) ≠ ((𝑌 + 1) mod 𝑁))
6332, 61, 62syl2an 608 . . . . . . . . . . . . . . 15 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((𝑌 − 1) mod 𝑁) ≠ ((𝑌 + 1) mod 𝑁))
64 eqneqall 2971 . . . . . . . . . . . . . . . 16 (((𝑌 − 1) mod 𝑁) = ((𝑌 + 1) mod 𝑁) → (((𝑌 − 1) mod 𝑁) ≠ ((𝑌 + 1) mod 𝑁) → 𝑋 = 𝑌))
6564com12 33 . . . . . . . . . . . . . . 15 (((𝑌 − 1) mod 𝑁) ≠ ((𝑌 + 1) mod 𝑁) → (((𝑌 − 1) mod 𝑁) = ((𝑌 + 1) mod 𝑁) → 𝑋 = 𝑌))
6663, 65syl 18 . . . . . . . . . . . . . 14 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((𝑌 − 1) mod 𝑁) = ((𝑌 + 1) mod 𝑁) → 𝑋 = 𝑌))
6766adantld 496 . . . . . . . . . . . . 13 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((0 = 0 ∧ ((𝑌 − 1) mod 𝑁) = ((𝑌 + 1) mod 𝑁)) → 𝑋 = 𝑌))
6860, 67biimtrid 245 . . . . . . . . . . . 12 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
6968adantr 486 . . . . . . . . . . 11 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
7058, 69sylbid 243 . . . . . . . . . 10 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → 𝑋 = 𝑌))
7149orci 879 . . . . . . . . . . . . . 14 (0 ≠ 1 ∨ ((𝑌 + 1) mod 𝑁) ≠ 𝑋)
727, 30opthne 5466 . . . . . . . . . . . . . 14 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋⟩ ↔ (0 ≠ 1 ∨ ((𝑌 + 1) mod 𝑁) ≠ 𝑋))
7371, 72mpbir 234 . . . . . . . . . . . . 13 ⟨0, ((𝑌 + 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋
7473a1i 11 . . . . . . . . . . . 12 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ⟨0, ((𝑌 + 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋⟩)
75 eqneqall 2971 . . . . . . . . . . . . 13 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
7675com12 33 . . . . . . . . . . . 12 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋⟩ → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
7774, 76syl 18 . . . . . . . . . . 11 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
7877imp 412 . . . . . . . . . 10 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
7955, 70, 783jaod 1456 . . . . . . . . 9 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌))
8079ex 418 . . . . . . . 8 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)))
817, 30opth 5460 . . . . . . . . . . . 12 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ ↔ (0 = 0 ∧ ((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁)))
827, 59opth 5460 . . . . . . . . . . . . . . 15 (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ↔ (0 = 0 ∧ ((𝑌 − 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁)))
83 simpll 779 . . . . . . . . . . . . . . . . . 18 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → 𝑁 ∈ (ℤ‘5))
84 simprl 783 . . . . . . . . . . . . . . . . . 18 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → 𝑋𝐼)
85 simprr 785 . . . . . . . . . . . . . . . . . 18 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → 𝑌𝐼)
8637modm1p1ne 48171 . . . . . . . . . . . . . . . . . 18 ((𝑁 ∈ (ℤ‘5) ∧ 𝑋𝐼𝑌𝐼) → (((𝑌 − 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁) → ((𝑌 + 1) mod 𝑁) ≠ ((𝑋 − 1) mod 𝑁)))
8783, 84, 85, 86syl3anc 1398 . . . . . . . . . . . . . . . . 17 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((𝑌 − 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁) → ((𝑌 + 1) mod 𝑁) ≠ ((𝑋 − 1) mod 𝑁)))
88 eqneqall 2971 . . . . . . . . . . . . . . . . . . 19 (((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁) → (((𝑌 + 1) mod 𝑁) ≠ ((𝑋 − 1) mod 𝑁) → 𝑋 = 𝑌))
8988com12 33 . . . . . . . . . . . . . . . . . 18 (((𝑌 + 1) mod 𝑁) ≠ ((𝑋 − 1) mod 𝑁) → (((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁) → 𝑋 = 𝑌))
9089a1i 11 . . . . . . . . . . . . . . . . 17 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((𝑌 + 1) mod 𝑁) ≠ ((𝑋 − 1) mod 𝑁) → (((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁) → 𝑋 = 𝑌)))
9187, 90syld 48 . . . . . . . . . . . . . . . 16 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((𝑌 − 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁) → (((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁) → 𝑋 = 𝑌)))
9291adantld 496 . . . . . . . . . . . . . . 15 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((0 = 0 ∧ ((𝑌 − 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁)) → (((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁) → 𝑋 = 𝑌)))
9382, 92biimtrid 245 . . . . . . . . . . . . . 14 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → (((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁) → 𝑋 = 𝑌)))
9493com23 87 . . . . . . . . . . . . 13 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
9594adantld 496 . . . . . . . . . . . 12 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((0 = 0 ∧ ((𝑌 + 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁)) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
9681, 95biimtrid 245 . . . . . . . . . . 11 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌)))
9796imp 412 . . . . . . . . . 10 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
9849orci 879 . . . . . . . . . . . . 13 (0 ≠ 1 ∨ ((𝑌 − 1) mod 𝑁) ≠ 𝑋)
997, 59opthne 5466 . . . . . . . . . . . . 13 (⟨0, ((𝑌 − 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋⟩ ↔ (0 ≠ 1 ∨ ((𝑌 − 1) mod 𝑁) ≠ 𝑋))
10098, 99mpbir 234 . . . . . . . . . . . 12 ⟨0, ((𝑌 − 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋
101 eqneqall 2971 . . . . . . . . . . . 12 (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ ≠ ⟨1, 𝑋⟩ → 𝑋 = 𝑌))
102100, 101mpi 21 . . . . . . . . . . 11 (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → 𝑋 = 𝑌)
103102a1i 11 . . . . . . . . . 10 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ → 𝑋 = 𝑌))
104 eqeq2 2777 . . . . . . . . . . . . 13 (⟨0, ((𝑋 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩))
105104eqcoms 2773 . . . . . . . . . . . 12 (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩))
106105adantl 487 . . . . . . . . . . 11 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩))
10768adantr 486 . . . . . . . . . . 11 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
108106, 107sylbid 243 . . . . . . . . . 10 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → 𝑋 = 𝑌))
10997, 103, 1083jaod 1456 . . . . . . . . 9 ((((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) ∧ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌))
110109ex 418 . . . . . . . 8 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩ → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)))
11147, 80, 1103jaod 1456 . . . . . . 7 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)))
112 op2ndg 8005 . . . . . . . . . . 11 ((0 ∈ V ∧ 𝑋𝐼) → (2nd ‘⟨0, 𝑋⟩) = 𝑋)
1137, 112mpan 703 . . . . . . . . . 10 (𝑋𝐼 → (2nd ‘⟨0, 𝑋⟩) = 𝑋)
114113adantr 486 . . . . . . . . 9 ((𝑋𝐼𝑌𝐼) → (2nd ‘⟨0, 𝑋⟩) = 𝑋)
115114adantl 487 . . . . . . . 8 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (2nd ‘⟨0, 𝑋⟩) = 𝑋)
116 oveq1 7426 . . . . . . . . . . . . 13 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → ((2nd ‘⟨0, 𝑋⟩) + 1) = (𝑋 + 1))
117116oveq1d 7434 . . . . . . . . . . . 12 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁) = ((𝑋 + 1) mod 𝑁))
118117opeq2d 4847 . . . . . . . . . . 11 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩)
119118eqeq2d 2776 . . . . . . . . . 10 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ↔ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩))
120 opeq2 4841 . . . . . . . . . . 11 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ = ⟨1, 𝑋⟩)
121120eqeq2d 2776 . . . . . . . . . 10 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ↔ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩))
122 oveq1 7426 . . . . . . . . . . . . 13 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → ((2nd ‘⟨0, 𝑋⟩) − 1) = (𝑋 − 1))
123122oveq1d 7434 . . . . . . . . . . . 12 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁) = ((𝑋 − 1) mod 𝑁))
124123opeq2d 4847 . . . . . . . . . . 11 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩)
125124eqeq2d 2776 . . . . . . . . . 10 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩ ↔ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩))
126119, 121, 1253orbi123d 1463 . . . . . . . . 9 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → ((⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) ↔ (⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩)))
127118eqeq2d 2776 . . . . . . . . . . 11 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩))
128120eqeq2d 2776 . . . . . . . . . . 11 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩))
129124eqeq2d 2776 . . . . . . . . . . 11 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩ ↔ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩))
130127, 128, 1293orbi123d 1463 . . . . . . . . . 10 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) ↔ (⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩)))
131130imbi1d 344 . . . . . . . . 9 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → 𝑋 = 𝑌) ↔ ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)))
132126, 131imbi12d 347 . . . . . . . 8 ((2nd ‘⟨0, 𝑋⟩) = 𝑋 → (((⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)) ↔ ((⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌))))
133115, 132syl 18 . . . . . . 7 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (((⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)) ↔ ((⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, 𝑋⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, ((𝑋 − 1) mod 𝑁)⟩) → 𝑋 = 𝑌))))
134111, 133mpbird 260 . . . . . 6 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 + 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)))
13529, 134syld 48 . . . . 5 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ({⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸 → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → 𝑋 = 𝑌)))
136135com23 87 . . . 4 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) + 1) mod 𝑁)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨1, (2nd ‘⟨0, 𝑋⟩)⟩ ∨ ⟨0, ((𝑌 − 1) mod 𝑁)⟩ = ⟨0, (((2nd ‘⟨0, 𝑋⟩) − 1) mod 𝑁)⟩) → ({⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸𝑋 = 𝑌)))
13723, 136syld 48 . . 3 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 → ({⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸𝑋 = 𝑌)))
138137impd 416 . 2 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) → 𝑋 = 𝑌))
139 eqid 2765 . . . . . . . . 9 0 = 0
140139orci 879 . . . . . . . 8 (0 = 0 ∨ 0 = 1)
14161, 140jctil 529 . . . . . . 7 ((𝑋𝐼𝑌𝐼) → ((0 = 0 ∨ 0 = 1) ∧ 𝑌𝐼))
142141adantl 487 . . . . . 6 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ((0 = 0 ∨ 0 = 1) ∧ 𝑌𝐼))
14337, 16, 17, 18opgpgvtx 48878 . . . . . . . 8 ((𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽) → (⟨0, 𝑌⟩ ∈ (Vtx‘𝐺) ↔ ((0 = 0 ∨ 0 = 1) ∧ 𝑌𝐼)))
1444, 143syl 18 . . . . . . 7 ((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) → (⟨0, 𝑌⟩ ∈ (Vtx‘𝐺) ↔ ((0 = 0 ∨ 0 = 1) ∧ 𝑌𝐼)))
145144adantr 486 . . . . . 6 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (⟨0, 𝑌⟩ ∈ (Vtx‘𝐺) ↔ ((0 = 0 ∨ 0 = 1) ∧ 𝑌𝐼)))
146142, 145mpbird 260 . . . . 5 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ⟨0, 𝑌⟩ ∈ (Vtx‘𝐺))
1477a1i 11 . . . . . . 7 (𝑋𝐼 → 0 ∈ V)
148 op1stg 8004 . . . . . . 7 ((0 ∈ V ∧ 𝑌𝐼) → (1st ‘⟨0, 𝑌⟩) = 0)
149147, 148sylan 592 . . . . . 6 ((𝑋𝐼𝑌𝐼) → (1st ‘⟨0, 𝑌⟩) = 0)
150149adantl 487 . . . . 5 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (1st ‘⟨0, 𝑌⟩) = 0)
15116, 17, 18, 19gpgedgvtx0 48884 . . . . 5 (((𝑁 ∈ (ℤ‘3) ∧ 𝐾𝐽) ∧ (⟨0, 𝑌⟩ ∈ (Vtx‘𝐺) ∧ (1st ‘⟨0, 𝑌⟩) = 0)) → ({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨1, (2nd ‘⟨0, 𝑌⟩)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸))
1525, 146, 150, 151syl12anc 850 . . . 4 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨1, (2nd ‘⟨0, 𝑌⟩)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸))
153 op2ndg 8005 . . . . . . . . . . . 12 ((0 ∈ V ∧ 𝑌𝐼) → (2nd ‘⟨0, 𝑌⟩) = 𝑌)
1547, 153mpan 703 . . . . . . . . . . 11 (𝑌𝐼 → (2nd ‘⟨0, 𝑌⟩) = 𝑌)
155 oveq1 7426 . . . . . . . . . . . . . . . . 17 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → ((2nd ‘⟨0, 𝑌⟩) − 1) = (𝑌 − 1))
156155oveq1d 7434 . . . . . . . . . . . . . . . 16 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁) = ((𝑌 − 1) mod 𝑁))
157156opeq2d 4847 . . . . . . . . . . . . . . 15 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩ = ⟨0, ((𝑌 − 1) mod 𝑁)⟩)
158157preq2d 4708 . . . . . . . . . . . . . 14 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} = {⟨0, 𝑌⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩})
159 prcom 4700 . . . . . . . . . . . . . 14 {⟨0, 𝑌⟩, ⟨0, ((𝑌 − 1) mod 𝑁)⟩} = {⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩}
160158, 159eqtrdi 2816 . . . . . . . . . . . . 13 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} = {⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩})
161160eleq1d 2850 . . . . . . . . . . . 12 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → ({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸 ↔ {⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸))
162 oveq1 7426 . . . . . . . . . . . . . . . 16 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → ((2nd ‘⟨0, 𝑌⟩) + 1) = (𝑌 + 1))
163162oveq1d 7434 . . . . . . . . . . . . . . 15 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁) = ((𝑌 + 1) mod 𝑁))
164163opeq2d 4847 . . . . . . . . . . . . . 14 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩ = ⟨0, ((𝑌 + 1) mod 𝑁)⟩)
165164preq2d 4708 . . . . . . . . . . . . 13 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} = {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩})
166165eleq1d 2850 . . . . . . . . . . . 12 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → ({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ↔ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸))
167161, 166anbi12d 644 . . . . . . . . . . 11 ((2nd ‘⟨0, 𝑌⟩) = 𝑌 → (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸) ↔ ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
168154, 167syl 18 . . . . . . . . . 10 (𝑌𝐼 → (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸) ↔ ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
169168biimpcd 252 . . . . . . . . 9 (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸) → (𝑌𝐼 → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
170169ancoms 464 . . . . . . . 8 (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸) → (𝑌𝐼 → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
1711703adant2 1149 . . . . . . 7 (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨1, (2nd ‘⟨0, 𝑌⟩)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸) → (𝑌𝐼 → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
172171com12 33 . . . . . 6 (𝑌𝐼 → (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨1, (2nd ‘⟨0, 𝑌⟩)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸) → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
173172adantl 487 . . . . 5 ((𝑋𝐼𝑌𝐼) → (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨1, (2nd ‘⟨0, 𝑌⟩)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸) → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
174173adantl 487 . . . 4 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (({⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) + 1) mod 𝑁)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨1, (2nd ‘⟨0, 𝑌⟩)⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, (((2nd ‘⟨0, 𝑌⟩) − 1) mod 𝑁)⟩} ∈ 𝐸) → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
175152, 174mpd 16 . . 3 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸))
176 opeq2 4841 . . . . . 6 (𝑋 = 𝑌 → ⟨0, 𝑋⟩ = ⟨0, 𝑌⟩)
177176preq2d 4708 . . . . 5 (𝑋 = 𝑌 → {⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} = {⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩})
178177eleq1d 2850 . . . 4 (𝑋 = 𝑌 → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 ↔ {⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸))
179176preq1d 4707 . . . . 5 (𝑋 = 𝑌 → {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} = {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩})
180179eleq1d 2850 . . . 4 (𝑋 = 𝑌 → ({⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸 ↔ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸))
181178, 180anbi12d 644 . . 3 (𝑋 = 𝑌 → (({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) ↔ ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑌⟩} ∈ 𝐸 ∧ {⟨0, 𝑌⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
182175, 181syl5ibrcom 250 . 2 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (𝑋 = 𝑌 → ({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸)))
183138, 182impbid 215 1 (((𝑁 ∈ (ℤ‘5) ∧ 𝐾𝐽) ∧ (𝑋𝐼𝑌𝐼)) → (({⟨0, ((𝑌 − 1) mod 𝑁)⟩, ⟨0, 𝑋⟩} ∈ 𝐸 ∧ {⟨0, 𝑋⟩, ⟨0, ((𝑌 + 1) mod 𝑁)⟩} ∈ 𝐸) ↔ 𝑋 = 𝑌))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wa 401  wo 861  w3o 1102  w3a 1103   = wceq 1570  wcel 2146  wne 2960  Vcvv 3457  {cpr 4593  cop 4597  cfv 6540  (class class class)co 7419  1st c1st 7990  2nd c2nd 7991  0cc0 11115  1c1 11116   + caddc 11118  cmin 11456   / cdiv 11886  2c2 12310  3c3 12311  5c5 12313  cz 12606  cuz 12878  ..^cfzo 13699  cceil 13842   mod cmo 13920  Vtxcvtx 29401  Edgcedg 29452   gPetersenGr cgpg 48863
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2737  ax-rep 5240  ax-sep 5259  ax-nul 5271  ax-pow 5338  ax-pr 5406  ax-un 7742  ax-cnex 11171  ax-resscn 11172  ax-1cn 11173  ax-icn 11174  ax-addcl 11175  ax-addrcl 11176  ax-mulcl 11177  ax-mulrcl 11178  ax-mulcom 11179  ax-addass 11180  ax-mulass 11181  ax-distr 11182  ax-i2m1 11183  ax-1ne0 11184  ax-1rid 11185  ax-rnegex 11186  ax-rrecex 11187  ax-cnre 11188  ax-pre-lttri 11189  ax-pre-lttrn 11190  ax-pre-ltadd 11191  ax-pre-mulgt0 11192  ax-pre-sup 11193
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2569  df-eu 2599  df-clab 2744  df-cleq 2757  df-clel 2840  df-nfc 2914  df-ne 2961  df-nel 3067  df-ral 3082  df-rex 3092  df-rmo 3371  df-reu 3372  df-rab 3419  df-v 3459  df-sbc 3747  df-csb 3855  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-pss 3926  df-nul 4287  df-if 4490  df-pw 4566  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4875  df-int 4915  df-iun 4960  df-br 5112  df-opab 5176  df-mpt 5195  df-tr 5221  df-id 5558  df-eprel 5563  df-po 5571  df-so 5572  df-fr 5616  df-we 5618  df-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-rn 5674  df-res 5675  df-ima 5676  df-pred 6306  df-ord 6367  df-on 6368  df-lim 6369  df-suc 6370  df-iota 6496  df-fun 6542  df-fn 6543  df-f 6544  df-f1 6545  df-fo 6546  df-f1o 6547  df-fv 6548  df-riota 7376  df-ov 7422  df-oprab 7423  df-mpo 7424  df-om 7869  df-1st 7992  df-2nd 7993  df-frecs 8284  df-wrecs 8315  df-recs 8364  df-rdg 8403  df-1o 8459  df-oadd 8463  df-er 8700  df-en 8950  df-dom 8951  df-sdom 8952  df-fin 8953  df-sup 9409  df-inf 9410  df-dju 9903  df-card 9941  df-pnf 11260  df-mnf 11261  df-xr 11262  df-ltxr 11263  df-le 11264  df-sub 11458  df-neg 11459  df-div 11887  df-nn 12249  df-2 12318  df-3 12319  df-4 12320  df-5 12321  df-6 12322  df-7 12323  df-8 12324  df-9 12325  df-n0 12520  df-xnn0 12593  df-z 12607  df-dec 12728  df-uz 12879  df-rp 13033  df-ico 13394  df-fz 13552  df-fzo 13700  df-fl 13843  df-ceil 13844  df-mod 13921  df-hash 14385  df-dvds 16333  df-struct 17229  df-slot 17264  df-ndx 17276  df-base 17292  df-edgf 29394  df-vtx 29403  df-iedg 29404  df-edg 29453  df-umgr 29488  df-usgr 29559  df-gpg 48864
This theorem is used by:  pgnbgreunbgrlem1  48936
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