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Theorem gricgrlic 49085
Description: Isomorphic hypergraphs are locally isomorphic. (Contributed by AV, 12-Jun-2025.) (Proof shortened by AV, 11-Jul-2025.)
Assertion
Ref Expression
gricgrlic ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph) → (𝐺 ≃𝑔𝑟 𝐻 → 𝐺 ≃𝑙𝑔𝑟 𝐻))

Proof of Theorem gricgrlic
Dummy variable 𝑖 is distinct from all other variables.
StepHypRef Expression
1 brgric 48979 . . 3 (𝐺 ≃𝑔𝑟 𝐻 ↔ (𝐺 GraphIso 𝐻) ≠ ∅)
2 n0 4300 . . . 4 ((𝐺 GraphIso 𝐻) ≠ ∅ ↔ ∃𝑖 𝑖 ∈ (𝐺 GraphIso 𝐻))
3 uhgrimgrlim 49054 . . . . . . . 8 ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph ∧ 𝑖 ∈ (𝐺 GraphIso 𝐻)) → 𝑖 ∈ (𝐺 GraphLocIso 𝐻))
4 brgrilci 49072 . . . . . . . 8 (𝑖 ∈ (𝐺 GraphLocIso 𝐻) → 𝐺 ≃𝑙𝑔𝑟 𝐻)
53, 4syl 18 . . . . . . 7 ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph ∧ 𝑖 ∈ (𝐺 GraphIso 𝐻)) → 𝐺 ≃𝑙𝑔𝑟 𝐻)
653expa 1136 . . . . . 6 (((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph) ∧ 𝑖 ∈ (𝐺 GraphIso 𝐻)) → 𝐺 ≃𝑙𝑔𝑟 𝐻)
76expcom 419 . . . . 5 (𝑖 ∈ (𝐺 GraphIso 𝐻) → ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph) → 𝐺 ≃𝑙𝑔𝑟 𝐻))
87exlimiv 1963 . . . 4 (∃𝑖 𝑖 ∈ (𝐺 GraphIso 𝐻) → ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph) → 𝐺 ≃𝑙𝑔𝑟 𝐻))
92, 8sylbi 220 . . 3 ((𝐺 GraphIso 𝐻) ≠ ∅ → ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph) → 𝐺 ≃𝑙𝑔𝑟 𝐻))
101, 9sylbi 220 . 2 (𝐺 ≃𝑔𝑟 𝐻 → ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph) → 𝐺 ≃𝑙𝑔𝑟 𝐻))
1110com12 33 1 ((𝐺 ∈ UHGraph ∧ 𝐻 ∈ UHGraph) → (𝐺 ≃𝑔𝑟 𝐻 → 𝐺 ≃𝑙𝑔𝑟 𝐻))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ∧ wa 401   ∧ w3a 1103  ∃wex 1812   ∈ wcel 2145   ≠ wne 2956  ∅c0 4279   class class class wbr 5103  (class class class)co 7418  UHGraphcuhgr 29627   GraphIso cgrim 48942   ≃𝑔𝑟 cgric 48943   GraphLocIso cgrlim 49043   ≃𝑙𝑔𝑟 cgrlic 49044
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 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pow 5327  ax-pr 5391  ax-un 7749
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-reu 3367  df-rab 3414  df-v 3453  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-iun 4953  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-suc 6367  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-ov 7421  df-oprab 7422  df-mpo 7423  df-1st 7999  df-2nd 8000  df-1o 8469  df-map 8842  df-vtx 29569  df-iedg 29570  df-edg 29619  df-uhgr 29629  df-clnbgr 48886  df-isubgr 48928  df-grim 48945  df-gric 48948  df-grlim 49045  df-grlic 49048
This theorem is used by: (None)
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