| Step |
Hyp |
Ref |
Expression |
| 1 |
|
ballotth.m |
⊢ 𝑀 ∈ ℕ |
| 2 |
|
ballotth.n |
⊢ 𝑁 ∈ ℕ |
| 3 |
|
ballotth.o |
⊢ 𝑂 = { 𝑐 ∈ 𝒫 ( 1 ... ( 𝑀 + 𝑁 ) ) ∣ ( ♯ ‘ 𝑐 ) = 𝑀 } |
| 4 |
|
ballotth.p |
⊢ 𝑃 = ( 𝑥 ∈ 𝒫 𝑂 ↦ ( ( ♯ ‘ 𝑥 ) / ( ♯ ‘ 𝑂 ) ) ) |
| 5 |
|
ballotth.f |
⊢ 𝐹 = ( 𝑐 ∈ 𝑂 ↦ ( 𝑖 ∈ ℤ ↦ ( ( ♯ ‘ ( ( 1 ... 𝑖 ) ∩ 𝑐 ) ) − ( ♯ ‘ ( ( 1 ... 𝑖 ) ∖ 𝑐 ) ) ) ) ) |
| 6 |
|
ballotth.e |
⊢ 𝐸 = { 𝑐 ∈ 𝑂 ∣ ∀ 𝑖 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) 0 < ( ( 𝐹 ‘ 𝑐 ) ‘ 𝑖 ) } |
| 7 |
|
ballotth.mgtn |
⊢ 𝑁 < 𝑀 |
| 8 |
|
ballotth.i |
⊢ 𝐼 = ( 𝑐 ∈ ( 𝑂 ∖ 𝐸 ) ↦ inf ( { 𝑘 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ∣ ( ( 𝐹 ‘ 𝑐 ) ‘ 𝑘 ) = 0 } , ℝ , < ) ) |
| 9 |
|
ballotth.s |
⊢ 𝑆 = ( 𝑐 ∈ ( 𝑂 ∖ 𝐸 ) ↦ ( 𝑖 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ↦ if ( 𝑖 ≤ ( 𝐼 ‘ 𝑐 ) , ( ( ( 𝐼 ‘ 𝑐 ) + 1 ) − 𝑖 ) , 𝑖 ) ) ) |
| 10 |
1 2 3 4 5 6 7 8 9
|
ballotlemsv |
⊢ ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) → ( ( 𝑆 ‘ 𝐶 ) ‘ 𝐽 ) = if ( 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) , ( ( ( 𝐼 ‘ 𝐶 ) + 1 ) − 𝐽 ) , 𝐽 ) ) |
| 11 |
1 2 3 4 5 6 7 8
|
ballotlemiex |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → ( ( 𝐼 ‘ 𝐶 ) ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ∧ ( ( 𝐹 ‘ 𝐶 ) ‘ ( 𝐼 ‘ 𝐶 ) ) = 0 ) ) |
| 12 |
11
|
simpld |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → ( 𝐼 ‘ 𝐶 ) ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 13 |
12
|
elfzelzd |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → ( 𝐼 ‘ 𝐶 ) ∈ ℤ ) |
| 14 |
13
|
ad2antrr |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( 𝐼 ‘ 𝐶 ) ∈ ℤ ) |
| 15 |
|
nnaddcl |
⊢ ( ( 𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ) → ( 𝑀 + 𝑁 ) ∈ ℕ ) |
| 16 |
1 2 15
|
mp2an |
⊢ ( 𝑀 + 𝑁 ) ∈ ℕ |
| 17 |
16
|
nnzi |
⊢ ( 𝑀 + 𝑁 ) ∈ ℤ |
| 18 |
17
|
a1i |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( 𝑀 + 𝑁 ) ∈ ℤ ) |
| 19 |
12
|
ad2antrr |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( 𝐼 ‘ 𝐶 ) ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 20 |
|
elfzle2 |
⊢ ( ( 𝐼 ‘ 𝐶 ) ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) → ( 𝐼 ‘ 𝐶 ) ≤ ( 𝑀 + 𝑁 ) ) |
| 21 |
19 20
|
syl |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( 𝐼 ‘ 𝐶 ) ≤ ( 𝑀 + 𝑁 ) ) |
| 22 |
|
eluz2 |
⊢ ( ( 𝑀 + 𝑁 ) ∈ ( ℤ≥ ‘ ( 𝐼 ‘ 𝐶 ) ) ↔ ( ( 𝐼 ‘ 𝐶 ) ∈ ℤ ∧ ( 𝑀 + 𝑁 ) ∈ ℤ ∧ ( 𝐼 ‘ 𝐶 ) ≤ ( 𝑀 + 𝑁 ) ) ) |
| 23 |
|
fzss2 |
⊢ ( ( 𝑀 + 𝑁 ) ∈ ( ℤ≥ ‘ ( 𝐼 ‘ 𝐶 ) ) → ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ⊆ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 24 |
22 23
|
sylbir |
⊢ ( ( ( 𝐼 ‘ 𝐶 ) ∈ ℤ ∧ ( 𝑀 + 𝑁 ) ∈ ℤ ∧ ( 𝐼 ‘ 𝐶 ) ≤ ( 𝑀 + 𝑁 ) ) → ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ⊆ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 25 |
14 18 21 24
|
syl3anc |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ⊆ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 26 |
|
1zzd |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → 1 ∈ ℤ ) |
| 27 |
|
simplr |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 28 |
27
|
elfzelzd |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → 𝐽 ∈ ℤ ) |
| 29 |
|
elfzle1 |
⊢ ( 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) → 1 ≤ 𝐽 ) |
| 30 |
27 29
|
syl |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → 1 ≤ 𝐽 ) |
| 31 |
|
simpr |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) |
| 32 |
26 14 28 30 31
|
elfzd |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → 𝐽 ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ) |
| 33 |
|
fzrev3i |
⊢ ( 𝐽 ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) → ( ( 1 + ( 𝐼 ‘ 𝐶 ) ) − 𝐽 ) ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ) |
| 34 |
32 33
|
syl |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( ( 1 + ( 𝐼 ‘ 𝐶 ) ) − 𝐽 ) ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ) |
| 35 |
|
1cnd |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → 1 ∈ ℂ ) |
| 36 |
13
|
zcnd |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → ( 𝐼 ‘ 𝐶 ) ∈ ℂ ) |
| 37 |
35 36
|
addcomd |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → ( 1 + ( 𝐼 ‘ 𝐶 ) ) = ( ( 𝐼 ‘ 𝐶 ) + 1 ) ) |
| 38 |
37
|
oveq1d |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → ( ( 1 + ( 𝐼 ‘ 𝐶 ) ) − 𝐽 ) = ( ( ( 𝐼 ‘ 𝐶 ) + 1 ) − 𝐽 ) ) |
| 39 |
38
|
eleq1d |
⊢ ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) → ( ( ( 1 + ( 𝐼 ‘ 𝐶 ) ) − 𝐽 ) ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ↔ ( ( ( 𝐼 ‘ 𝐶 ) + 1 ) − 𝐽 ) ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ) ) |
| 40 |
39
|
ad2antrr |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( ( ( 1 + ( 𝐼 ‘ 𝐶 ) ) − 𝐽 ) ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ↔ ( ( ( 𝐼 ‘ 𝐶 ) + 1 ) − 𝐽 ) ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ) ) |
| 41 |
34 40
|
mpbid |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( ( ( 𝐼 ‘ 𝐶 ) + 1 ) − 𝐽 ) ∈ ( 1 ... ( 𝐼 ‘ 𝐶 ) ) ) |
| 42 |
25 41
|
sseldd |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → ( ( ( 𝐼 ‘ 𝐶 ) + 1 ) − 𝐽 ) ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 43 |
|
simplr |
⊢ ( ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) ∧ ¬ 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) ) → 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 44 |
42 43
|
ifclda |
⊢ ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) → if ( 𝐽 ≤ ( 𝐼 ‘ 𝐶 ) , ( ( ( 𝐼 ‘ 𝐶 ) + 1 ) − 𝐽 ) , 𝐽 ) ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |
| 45 |
10 44
|
eqeltrd |
⊢ ( ( 𝐶 ∈ ( 𝑂 ∖ 𝐸 ) ∧ 𝐽 ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) → ( ( 𝑆 ‘ 𝐶 ) ‘ 𝐽 ) ∈ ( 1 ... ( 𝑀 + 𝑁 ) ) ) |