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Theorem lfgrwlkprop 29540

Description: Two adjacent vertices in a walk are different in a loop-free graph. (Contributed by AV, 28-Jan-2021.)

**Hypothesis**
Ref	Expression
lfgrwlkprop.i	⊢ 𝐼 = (iEdg‘𝐺)

**Assertion**
Ref	Expression
lfgrwlkprop	⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))

Distinct variable groups: 𝑘,𝐹,𝑥 𝑘,𝐺 𝑘,𝐼,𝑥 𝑃,𝑘 𝑘,𝑉,𝑥 Allowed substitution hints: 𝑃(𝑥) 𝐺(𝑥)

**Proof of Theorem lfgrwlkprop**
Step	Hyp	Ref	Expression
1		wlkv 29465	. . . . 5 ⊢ (𝐹(Walks‘𝐺)𝑃 → (𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V))
2		eqid 2725	. . . . . 6 ⊢ (Vtx‘𝐺) = (Vtx‘𝐺)
3		lfgrwlkprop.i	. . . . . 6 ⊢ 𝐼 = (iEdg‘𝐺)
4	2, 3	iswlk 29463	. . . . 5 ⊢ ((𝐺 ∈ V ∧ 𝐹 ∈ V ∧ 𝑃 ∈ V) → (𝐹(Walks‘𝐺)𝑃 ↔ (𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺) ∧ ∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))))))
5	1, 4	syl 17	. . . 4 ⊢ (𝐹(Walks‘𝐺)𝑃 → (𝐹(Walks‘𝐺)𝑃 ↔ (𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺) ∧ ∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))))))
6		ifptru 1072	. . . . . . . . . . . 12 ⊢ ((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)) → (if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) ↔ (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}))
7	6	adantr 479	. . . . . . . . . . 11 ⊢ (((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)) ∧ (((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹)))) → (if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) ↔ (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}))
8		simplr 767	. . . . . . . . . . . . . 14 ⊢ ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)})
9		wrdsymbcl 14504	. . . . . . . . . . . . . . 15 ⊢ ((𝐹 ∈ Word dom 𝐼 ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → (𝐹‘𝑘) ∈ dom 𝐼)
10	9	ad4ant14 750	. . . . . . . . . . . . . 14 ⊢ ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → (𝐹‘𝑘) ∈ dom 𝐼)
11	8, 10	ffvelcdmd 7088	. . . . . . . . . . . . 13 ⊢ ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → (𝐼‘(𝐹‘𝑘)) ∈ {𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)})
12		fveq2 6890	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = (𝐼‘(𝐹‘𝑘)) → (♯‘𝑥) = (♯‘(𝐼‘(𝐹‘𝑘))))
13	12	breq2d 5156	. . . . . . . . . . . . . . 15 ⊢ (𝑥 = (𝐼‘(𝐹‘𝑘)) → (2 ≤ (♯‘𝑥) ↔ 2 ≤ (♯‘(𝐼‘(𝐹‘𝑘)))))
14	13	elrab 3676	. . . . . . . . . . . . . 14 ⊢ ((𝐼‘(𝐹‘𝑘)) ∈ {𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)} ↔ ((𝐼‘(𝐹‘𝑘)) ∈ 𝒫 𝑉 ∧ 2 ≤ (♯‘(𝐼‘(𝐹‘𝑘)))))
15		fveq2 6890	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (♯‘(𝐼‘(𝐹‘𝑘))) = (♯‘{(𝑃‘𝑘)}))
16	15	breq2d 5156	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (2 ≤ (♯‘(𝐼‘(𝐹‘𝑘))) ↔ 2 ≤ (♯‘{(𝑃‘𝑘)})))
17		fvex 6903	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑃‘𝑘) ∈ V
18		hashsng 14355	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑃‘𝑘) ∈ V → (♯‘{(𝑃‘𝑘)}) = 1)
19	17, 18	ax-mp 5	. . . . . . . . . . . . . . . . . . . 20 ⊢ (♯‘{(𝑃‘𝑘)}) = 1
20	19	breq2i 5152	. . . . . . . . . . . . . . . . . . 19 ⊢ (2 ≤ (♯‘{(𝑃‘𝑘)}) ↔ 2 ≤ 1)
21		1lt2 12408	. . . . . . . . . . . . . . . . . . . 20 ⊢ 1 < 2
22		1re 11239	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ 1 ∈ ℝ
23		2re 12311	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ 2 ∈ ℝ
24	22, 23	ltnlei 11360	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (1 < 2 ↔ ¬ 2 ≤ 1)
25		pm2.21 123	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (¬ 2 ≤ 1 → (2 ≤ 1 → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
26	24, 25	sylbi 216	. . . . . . . . . . . . . . . . . . . 20 ⊢ (1 < 2 → (2 ≤ 1 → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
27	21, 26	ax-mp 5	. . . . . . . . . . . . . . . . . . 19 ⊢ (2 ≤ 1 → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))
28	20, 27	sylbi 216	. . . . . . . . . . . . . . . . . 18 ⊢ (2 ≤ (♯‘{(𝑃‘𝑘)}) → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))
29	16, 28	biimtrdi 252	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (2 ≤ (♯‘(𝐼‘(𝐹‘𝑘))) → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
30	29	com12 32	. . . . . . . . . . . . . . . 16 ⊢ (2 ≤ (♯‘(𝐼‘(𝐹‘𝑘))) → ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
31	30	adantl 480	. . . . . . . . . . . . . . 15 ⊢ (((𝐼‘(𝐹‘𝑘)) ∈ 𝒫 𝑉 ∧ 2 ≤ (♯‘(𝐼‘(𝐹‘𝑘)))) → ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
32	31	a1i 11	. . . . . . . . . . . . . 14 ⊢ ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → (((𝐼‘(𝐹‘𝑘)) ∈ 𝒫 𝑉 ∧ 2 ≤ (♯‘(𝐼‘(𝐹‘𝑘)))) → ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))))
33	14, 32	biimtrid 241	. . . . . . . . . . . . 13 ⊢ ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → ((𝐼‘(𝐹‘𝑘)) ∈ {𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)} → ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))))
34	11, 33	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
35	34	adantl 480	. . . . . . . . . . 11 ⊢ (((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)) ∧ (((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹)))) → ((𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)} → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
36	7, 35	sylbid 239	. . . . . . . . . 10 ⊢ (((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)) ∧ (((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹)))) → (if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
37	36	ex 411	. . . . . . . . 9 ⊢ ((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)) → ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → (if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))))
38		neqne 2938	. . . . . . . . . 10 ⊢ (¬ (𝑃‘𝑘) = (𝑃‘(𝑘 + 1)) → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))
39	38	2a1d 26	. . . . . . . . 9 ⊢ (¬ (𝑃‘𝑘) = (𝑃‘(𝑘 + 1)) → ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → (if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))))
40	37, 39	pm2.61i 182	. . . . . . . 8 ⊢ ((((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) ∧ 𝑘 ∈ (0..^(♯‘𝐹))) → (if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) → (𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
41	40	ralimdva 3157	. . . . . . 7 ⊢ (((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) → (∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
42	41	ex 411	. . . . . 6 ⊢ ((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) → (𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)} → (∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))))
43	42	com23 86	. . . . 5 ⊢ ((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺)) → (∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘))) → (𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)} → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))))
44	43	3impia 1114	. . . 4 ⊢ ((𝐹 ∈ Word dom 𝐼 ∧ 𝑃:(0...(♯‘𝐹))⟶(Vtx‘𝐺) ∧ ∀𝑘 ∈ (0..^(♯‘𝐹))if-((𝑃‘𝑘) = (𝑃‘(𝑘 + 1)), (𝐼‘(𝐹‘𝑘)) = {(𝑃‘𝑘)}, {(𝑃‘𝑘), (𝑃‘(𝑘 + 1))} ⊆ (𝐼‘(𝐹‘𝑘)))) → (𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)} → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
45	5, 44	biimtrdi 252	. . 3 ⊢ (𝐹(Walks‘𝐺)𝑃 → (𝐹(Walks‘𝐺)𝑃 → (𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)} → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))))
46	45	pm2.43i 52	. 2 ⊢ (𝐹(Walks‘𝐺)𝑃 → (𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)} → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1))))
47	46	imp 405	1 ⊢ ((𝐹(Walks‘𝐺)𝑃 ∧ 𝐼:dom 𝐼⟶{𝑥 ∈ 𝒫 𝑉 ∣ 2 ≤ (♯‘𝑥)}) → ∀𝑘 ∈ (0..^(♯‘𝐹))(𝑃‘𝑘) ≠ (𝑃‘(𝑘 + 1)))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 394 if-wif 1060 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 ≠ wne 2930 ∀wral 3051 {crab 3419 Vcvv 3463 ⊆ wss 3941 𝒫 cpw 4599 {csn 4625 {cpr 4627 class class class wbr 5144 dom cdm 5673 ⟶wf 6539 ‘cfv 6543 (class class class)co 7413 0cc0 11133 1c1 11134 + caddc 11136 < clt 11273 ≤ cle 11274 2c2 12292 ...cfz 13511 ..^cfzo 13654 ♯chash 14316 Word cword 14491 Vtxcvtx 28848 iEdgciedg 28849 Walkscwlks 29449

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-rep 5281 ax-sep 5295 ax-nul 5302 ax-pow 5360 ax-pr 5424 ax-un 7735 ax-cnex 11189 ax-resscn 11190 ax-1cn 11191 ax-icn 11192 ax-addcl 11193 ax-addrcl 11194 ax-mulcl 11195 ax-mulrcl 11196 ax-mulcom 11197 ax-addass 11198 ax-mulass 11199 ax-distr 11200 ax-i2m1 11201 ax-1ne0 11202 ax-1rid 11203 ax-rnegex 11204 ax-rrecex 11205 ax-cnre 11206 ax-pre-lttri 11207 ax-pre-lttrn 11208 ax-pre-ltadd 11209 ax-pre-mulgt0 11210

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-ifp 1061 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3961 df-nul 4320 df-if 4526 df-pw 4601 df-sn 4626 df-pr 4628 df-op 4632 df-uni 4905 df-int 4946 df-iun 4994 df-br 5145 df-opab 5207 df-mpt 5228 df-tr 5262 df-id 5571 df-eprel 5577 df-po 5585 df-so 5586 df-fr 5628 df-we 5630 df-xp 5679 df-rel 5680 df-cnv 5681 df-co 5682 df-dm 5683 df-rn 5684 df-res 5685 df-ima 5686 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7369 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7866 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-er 8718 df-map 8840 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-card 9957 df-pnf 11275 df-mnf 11276 df-xr 11277 df-ltxr 11278 df-le 11279 df-sub 11471 df-neg 11472 df-nn 12238 df-2 12300 df-n0 12498 df-z 12584 df-uz 12848 df-fz 13512 df-fzo 13655 df-hash 14317 df-word 14492 df-wlks 29452

This theorem is referenced by: lfgriswlk 29541

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