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Theorem ballotfi 13226
Description: Bertrand's ballot problem : the probability that A is ahead throughout the counting. The proof formalized here is a proof "by reflection", as opposed to other known proofs "by induction" or "by permutation". This is Metamath 100 proof #30. (Contributed by Thierry Arnoux, 7-Dec-2016.) (Revised by Jim Kingdon, 17-Jun-2026.)
Hypotheses
Ref Expression
ballotfi.m 𝑀 ∈ ℕ
ballotfi.n 𝑁 ∈ ℕ
ballotfi.o 𝑂 = {𝑐 ∈ (𝒫 (1...(𝑀 + 𝑁)) ∩ Fin) ∣ (♯‘𝑐) = 𝑀}
ballotfi.p 𝑃 = (𝑥 ∈ (𝒫 𝑂 ∩ Fin) ↦ ((♯‘𝑥) / (♯‘𝑂)))
ballotfi.f 𝐹 = (𝑐𝑂 ↦ (𝑖 ∈ ℤ ↦ ((♯‘((1...𝑖) ∩ 𝑐)) − (♯‘((1...𝑖) ∖ 𝑐)))))
ballotfi.e 𝐸 = {𝑐𝑂 ∣ ∀𝑖 ∈ (1...(𝑀 + 𝑁))0 < ((𝐹𝑐)‘𝑖)}
ballotfi.mgtn 𝑁 < 𝑀
Assertion
Ref Expression
ballotfi (𝑃𝐸) = ((𝑀𝑁) / (𝑀 + 𝑁))
Distinct variable groups:   𝐸,𝑐,𝑖,𝑥   𝐹,𝑐,𝑖,𝑥   𝑀,𝑐,𝑖,𝑥   𝑁,𝑐,𝑖,𝑥   𝑂,𝑐,𝑖,𝑥
Allowed substitution hints:   𝑃(𝑥,𝑖,𝑐)

Proof of Theorem ballotfi
Dummy variables 𝑘 𝑞 𝑟 𝑠 𝑝 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ballotfi.m . 2 𝑀 ∈ ℕ
2 ballotfi.n . 2 𝑁 ∈ ℕ
3 ballotfi.o . 2 𝑂 = {𝑐 ∈ (𝒫 (1...(𝑀 + 𝑁)) ∩ Fin) ∣ (♯‘𝑐) = 𝑀}
4 ballotfi.p . 2 𝑃 = (𝑥 ∈ (𝒫 𝑂 ∩ Fin) ↦ ((♯‘𝑥) / (♯‘𝑂)))
5 ballotfi.f . 2 𝐹 = (𝑐𝑂 ↦ (𝑖 ∈ ℤ ↦ ((♯‘((1...𝑖) ∩ 𝑐)) − (♯‘((1...𝑖) ∖ 𝑐)))))
6 ballotfi.e . 2 𝐸 = {𝑐𝑂 ∣ ∀𝑖 ∈ (1...(𝑀 + 𝑁))0 < ((𝐹𝑐)‘𝑖)}
7 ballotfi.mgtn . 2 𝑁 < 𝑀
8 fveq2 5675 . . . . . . . 8 (𝑞 = 𝑐 → (𝐹𝑞) = (𝐹𝑐))
98fveq1d 5677 . . . . . . 7 (𝑞 = 𝑐 → ((𝐹𝑞)‘𝑝) = ((𝐹𝑐)‘𝑝))
109eqeq1d 2243 . . . . . 6 (𝑞 = 𝑐 → (((𝐹𝑞)‘𝑝) = 0 ↔ ((𝐹𝑐)‘𝑝) = 0))
1110rabbidv 2804 . . . . 5 (𝑞 = 𝑐 → {𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0} = {𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑝) = 0})
1211infeq1d 7316 . . . 4 (𝑞 = 𝑐 → inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ) = inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑝) = 0}, ℝ, < ))
1312cbvmptv 4211 . . 3 (𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < )) = (𝑐 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑝) = 0}, ℝ, < ))
14 fveqeq2 5684 . . . . . 6 (𝑝 = 𝑘 → (((𝐹𝑐)‘𝑝) = 0 ↔ ((𝐹𝑐)‘𝑘) = 0))
1514cbvrabv 2814 . . . . 5 {𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑝) = 0} = {𝑘 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑘) = 0}
1615infeq1i 7317 . . . 4 inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑝) = 0}, ℝ, < ) = inf({𝑘 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑘) = 0}, ℝ, < )
1716mpteq2i 4202 . . 3 (𝑐 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑝) = 0}, ℝ, < )) = (𝑐 ∈ (𝑂𝐸) ↦ inf({𝑘 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑘) = 0}, ℝ, < ))
1813, 17eqtri 2255 . 2 (𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < )) = (𝑐 ∈ (𝑂𝐸) ↦ inf({𝑘 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑐)‘𝑘) = 0}, ℝ, < ))
19 fveq2 5675 . . . . . . 7 (𝑟 = 𝑐 → ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) = ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐))
2019breq2d 4126 . . . . . 6 (𝑟 = 𝑐 → (𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) ↔ 𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐)))
2119oveq1d 6073 . . . . . . 7 (𝑟 = 𝑐 → (((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) = (((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1))
2221oveq1d 6073 . . . . . 6 (𝑟 = 𝑐 → ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) − 𝑠) = ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠))
2320, 22ifbieq1d 3649 . . . . 5 (𝑟 = 𝑐 → if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) − 𝑠), 𝑠) = if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠), 𝑠))
2423mpteq2dv 4206 . . . 4 (𝑟 = 𝑐 → (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) − 𝑠), 𝑠)) = (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠), 𝑠)))
2524cbvmptv 4211 . . 3 (𝑟 ∈ (𝑂𝐸) ↦ (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) − 𝑠), 𝑠))) = (𝑐 ∈ (𝑂𝐸) ↦ (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠), 𝑠)))
26 breq1 4117 . . . . . 6 (𝑠 = 𝑖 → (𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) ↔ 𝑖 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐)))
27 oveq2 6066 . . . . . 6 (𝑠 = 𝑖 → ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠) = ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑖))
28 id 19 . . . . . 6 (𝑠 = 𝑖𝑠 = 𝑖)
2926, 27, 28ifbieq12d 3653 . . . . 5 (𝑠 = 𝑖 → if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠), 𝑠) = if(𝑖 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑖), 𝑖))
3029cbvmptv 4211 . . . 4 (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠), 𝑠)) = (𝑖 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑖 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑖), 𝑖))
3130mpteq2i 4202 . . 3 (𝑐 ∈ (𝑂𝐸) ↦ (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑠), 𝑠))) = (𝑐 ∈ (𝑂𝐸) ↦ (𝑖 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑖 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑖), 𝑖)))
3225, 31eqtri 2255 . 2 (𝑟 ∈ (𝑂𝐸) ↦ (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) − 𝑠), 𝑠))) = (𝑐 ∈ (𝑂𝐸) ↦ (𝑖 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑖 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑐) + 1) − 𝑖), 𝑖)))
33 eqid 2234 . 2 (𝑐 ∈ (𝑂𝐸) ↦ (((𝑟 ∈ (𝑂𝐸) ↦ (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) − 𝑠), 𝑠)))‘𝑐) “ 𝑐)) = (𝑐 ∈ (𝑂𝐸) ↦ (((𝑟 ∈ (𝑂𝐸) ↦ (𝑠 ∈ (1...(𝑀 + 𝑁)) ↦ if(𝑠 ≤ ((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟), ((((𝑞 ∈ (𝑂𝐸) ↦ inf({𝑝 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹𝑞)‘𝑝) = 0}, ℝ, < ))‘𝑟) + 1) − 𝑠), 𝑠)))‘𝑐) “ 𝑐))
341, 2, 3, 4, 5, 6, 7, 18, 32, 33ballotfilemth 13225 1 (𝑃𝐸) = ((𝑀𝑁) / (𝑀 + 𝑁))
Colors of variables: wff set class
Syntax hints:   = wceq 1398  wcel 2205  wral 2522  {crab 2526  cdif 3211  cin 3213  ifcif 3624  𝒫 cpw 3674   class class class wbr 4114  cmpt 4176  cima 4757  cfv 5357  (class class class)co 6058  Fincfn 6988  infcinf 7287  cr 8142  0cc0 8143  1c1 8144   + caddc 8146   < clt 8324  cle 8325  cmin 8460   / cdiv 8963  cn 9254  cz 9594  ...cfz 10361  chash 11163
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2207  ax-14 2208  ax-ext 2216  ax-coll 4230  ax-sep 4233  ax-nul 4241  ax-pow 4292  ax-pr 4327  ax-un 4559  ax-setind 4664  ax-iinf 4715  ax-cnex 8234  ax-resscn 8235  ax-1cn 8236  ax-1re 8237  ax-icn 8238  ax-addcl 8239  ax-addrcl 8240  ax-mulcl 8241  ax-mulrcl 8242  ax-addcom 8243  ax-mulcom 8244  ax-addass 8245  ax-mulass 8246  ax-distr 8247  ax-i2m1 8248  ax-0lt1 8249  ax-1rid 8250  ax-0id 8251  ax-rnegex 8252  ax-precex 8253  ax-cnre 8254  ax-pre-ltirr 8255  ax-pre-ltwlin 8256  ax-pre-lttrn 8257  ax-pre-apti 8258  ax-pre-ltadd 8259  ax-pre-mulgt0 8260  ax-pre-mulext 8261
This theorem depends on definitions:  df-bi 117  df-dc 843  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-nel 2510  df-ral 2527  df-rex 2528  df-reu 2529  df-rmo 2530  df-rab 2531  df-v 2817  df-sbc 3046  df-csb 3142  df-dif 3216  df-un 3218  df-in 3220  df-ss 3227  df-nul 3513  df-if 3625  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-int 3955  df-iun 3998  df-br 4115  df-opab 4177  df-mpt 4178  df-tr 4214  df-id 4419  df-po 4422  df-iso 4423  df-iord 4492  df-on 4494  df-ilim 4495  df-suc 4497  df-iom 4718  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-rn 4765  df-res 4766  df-ima 4767  df-iota 5317  df-fun 5359  df-fn 5360  df-f 5361  df-f1 5362  df-fo 5363  df-f1o 5364  df-fv 5365  df-isom 5366  df-riota 6011  df-ov 6061  df-oprab 6062  df-mpo 6063  df-1st 6347  df-2nd 6348  df-recs 6549  df-irdg 6614  df-frec 6635  df-1o 6660  df-2o 6661  df-oadd 6664  df-er 6780  df-map 6897  df-en 6989  df-dom 6990  df-fin 6991  df-sup 7288  df-inf 7289  df-pnf 8326  df-mnf 8327  df-xr 8328  df-ltxr 8329  df-le 8330  df-sub 8462  df-neg 8463  df-reap 8866  df-ap 8873  df-div 8964  df-inn 9255  df-2 9313  df-n0 9514  df-z 9595  df-uz 9872  df-q 9970  df-rp 10005  df-fz 10362  df-fzo 10499  df-seqfrec 10834  df-fac 11113  df-bc 11135  df-ihash 11164
This theorem is referenced by: (None)
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