Mathbox for Thierry Arnoux |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > Mathboxes > ballotlemii | Structured version Visualization version GIF version |
Description: The first tie cannot be reached at the first pick. (Contributed by Thierry Arnoux, 4-Apr-2017.) |
Ref | Expression |
---|---|
ballotth.m | ⊢ 𝑀 ∈ ℕ |
ballotth.n | ⊢ 𝑁 ∈ ℕ |
ballotth.o | ⊢ 𝑂 = {𝑐 ∈ 𝒫 (1...(𝑀 + 𝑁)) ∣ (♯‘𝑐) = 𝑀} |
ballotth.p | ⊢ 𝑃 = (𝑥 ∈ 𝒫 𝑂 ↦ ((♯‘𝑥) / (♯‘𝑂))) |
ballotth.f | ⊢ 𝐹 = (𝑐 ∈ 𝑂 ↦ (𝑖 ∈ ℤ ↦ ((♯‘((1...𝑖) ∩ 𝑐)) − (♯‘((1...𝑖) ∖ 𝑐))))) |
ballotth.e | ⊢ 𝐸 = {𝑐 ∈ 𝑂 ∣ ∀𝑖 ∈ (1...(𝑀 + 𝑁))0 < ((𝐹‘𝑐)‘𝑖)} |
ballotth.mgtn | ⊢ 𝑁 < 𝑀 |
ballotth.i | ⊢ 𝐼 = (𝑐 ∈ (𝑂 ∖ 𝐸) ↦ inf({𝑘 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹‘𝑐)‘𝑘) = 0}, ℝ, < )) |
Ref | Expression |
---|---|
ballotlemii | ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → (𝐼‘𝐶) ≠ 1) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1e0p1 12143 | . . . . . 6 ⊢ 1 = (0 + 1) | |
2 | ax-1ne0 10608 | . . . . . 6 ⊢ 1 ≠ 0 | |
3 | 1, 2 | eqnetrri 3089 | . . . . 5 ⊢ (0 + 1) ≠ 0 |
4 | 3 | neii 3020 | . . . 4 ⊢ ¬ (0 + 1) = 0 |
5 | ballotth.m | . . . . . . . . 9 ⊢ 𝑀 ∈ ℕ | |
6 | ballotth.n | . . . . . . . . 9 ⊢ 𝑁 ∈ ℕ | |
7 | ballotth.o | . . . . . . . . 9 ⊢ 𝑂 = {𝑐 ∈ 𝒫 (1...(𝑀 + 𝑁)) ∣ (♯‘𝑐) = 𝑀} | |
8 | ballotth.p | . . . . . . . . 9 ⊢ 𝑃 = (𝑥 ∈ 𝒫 𝑂 ↦ ((♯‘𝑥) / (♯‘𝑂))) | |
9 | ballotth.f | . . . . . . . . 9 ⊢ 𝐹 = (𝑐 ∈ 𝑂 ↦ (𝑖 ∈ ℤ ↦ ((♯‘((1...𝑖) ∩ 𝑐)) − (♯‘((1...𝑖) ∖ 𝑐))))) | |
10 | eldifi 4105 | . . . . . . . . 9 ⊢ (𝐶 ∈ (𝑂 ∖ 𝐸) → 𝐶 ∈ 𝑂) | |
11 | 1nn 11651 | . . . . . . . . . 10 ⊢ 1 ∈ ℕ | |
12 | 11 | a1i 11 | . . . . . . . . 9 ⊢ (𝐶 ∈ (𝑂 ∖ 𝐸) → 1 ∈ ℕ) |
13 | 5, 6, 7, 8, 9, 10, 12 | ballotlemfp1 31751 | . . . . . . . 8 ⊢ (𝐶 ∈ (𝑂 ∖ 𝐸) → ((¬ 1 ∈ 𝐶 → ((𝐹‘𝐶)‘1) = (((𝐹‘𝐶)‘(1 − 1)) − 1)) ∧ (1 ∈ 𝐶 → ((𝐹‘𝐶)‘1) = (((𝐹‘𝐶)‘(1 − 1)) + 1)))) |
14 | 13 | simprd 498 | . . . . . . 7 ⊢ (𝐶 ∈ (𝑂 ∖ 𝐸) → (1 ∈ 𝐶 → ((𝐹‘𝐶)‘1) = (((𝐹‘𝐶)‘(1 − 1)) + 1))) |
15 | 14 | imp 409 | . . . . . 6 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → ((𝐹‘𝐶)‘1) = (((𝐹‘𝐶)‘(1 − 1)) + 1)) |
16 | 1m1e0 11712 | . . . . . . . . 9 ⊢ (1 − 1) = 0 | |
17 | 16 | fveq2i 6675 | . . . . . . . 8 ⊢ ((𝐹‘𝐶)‘(1 − 1)) = ((𝐹‘𝐶)‘0) |
18 | 17 | oveq1i 7168 | . . . . . . 7 ⊢ (((𝐹‘𝐶)‘(1 − 1)) + 1) = (((𝐹‘𝐶)‘0) + 1) |
19 | 18 | a1i 11 | . . . . . 6 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → (((𝐹‘𝐶)‘(1 − 1)) + 1) = (((𝐹‘𝐶)‘0) + 1)) |
20 | 5, 6, 7, 8, 9 | ballotlemfval0 31755 | . . . . . . . . 9 ⊢ (𝐶 ∈ 𝑂 → ((𝐹‘𝐶)‘0) = 0) |
21 | 10, 20 | syl 17 | . . . . . . . 8 ⊢ (𝐶 ∈ (𝑂 ∖ 𝐸) → ((𝐹‘𝐶)‘0) = 0) |
22 | 21 | adantr 483 | . . . . . . 7 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → ((𝐹‘𝐶)‘0) = 0) |
23 | 22 | oveq1d 7173 | . . . . . 6 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → (((𝐹‘𝐶)‘0) + 1) = (0 + 1)) |
24 | 15, 19, 23 | 3eqtrrd 2863 | . . . . 5 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → (0 + 1) = ((𝐹‘𝐶)‘1)) |
25 | 24 | eqeq1d 2825 | . . . 4 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → ((0 + 1) = 0 ↔ ((𝐹‘𝐶)‘1) = 0)) |
26 | 4, 25 | mtbii 328 | . . 3 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → ¬ ((𝐹‘𝐶)‘1) = 0) |
27 | ballotth.e | . . . . . . 7 ⊢ 𝐸 = {𝑐 ∈ 𝑂 ∣ ∀𝑖 ∈ (1...(𝑀 + 𝑁))0 < ((𝐹‘𝑐)‘𝑖)} | |
28 | ballotth.mgtn | . . . . . . 7 ⊢ 𝑁 < 𝑀 | |
29 | ballotth.i | . . . . . . 7 ⊢ 𝐼 = (𝑐 ∈ (𝑂 ∖ 𝐸) ↦ inf({𝑘 ∈ (1...(𝑀 + 𝑁)) ∣ ((𝐹‘𝑐)‘𝑘) = 0}, ℝ, < )) | |
30 | 5, 6, 7, 8, 9, 27, 28, 29 | ballotlemiex 31761 | . . . . . 6 ⊢ (𝐶 ∈ (𝑂 ∖ 𝐸) → ((𝐼‘𝐶) ∈ (1...(𝑀 + 𝑁)) ∧ ((𝐹‘𝐶)‘(𝐼‘𝐶)) = 0)) |
31 | 30 | simprd 498 | . . . . 5 ⊢ (𝐶 ∈ (𝑂 ∖ 𝐸) → ((𝐹‘𝐶)‘(𝐼‘𝐶)) = 0) |
32 | 31 | ad2antrr 724 | . . . 4 ⊢ (((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) ∧ (𝐼‘𝐶) = 1) → ((𝐹‘𝐶)‘(𝐼‘𝐶)) = 0) |
33 | fveqeq2 6681 | . . . . 5 ⊢ ((𝐼‘𝐶) = 1 → (((𝐹‘𝐶)‘(𝐼‘𝐶)) = 0 ↔ ((𝐹‘𝐶)‘1) = 0)) | |
34 | 33 | adantl 484 | . . . 4 ⊢ (((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) ∧ (𝐼‘𝐶) = 1) → (((𝐹‘𝐶)‘(𝐼‘𝐶)) = 0 ↔ ((𝐹‘𝐶)‘1) = 0)) |
35 | 32, 34 | mpbid 234 | . . 3 ⊢ (((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) ∧ (𝐼‘𝐶) = 1) → ((𝐹‘𝐶)‘1) = 0) |
36 | 26, 35 | mtand 814 | . 2 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → ¬ (𝐼‘𝐶) = 1) |
37 | 36 | neqned 3025 | 1 ⊢ ((𝐶 ∈ (𝑂 ∖ 𝐸) ∧ 1 ∈ 𝐶) → (𝐼‘𝐶) ≠ 1) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 398 = wceq 1537 ∈ wcel 2114 ≠ wne 3018 ∀wral 3140 {crab 3144 ∖ cdif 3935 ∩ cin 3937 𝒫 cpw 4541 class class class wbr 5068 ↦ cmpt 5148 ‘cfv 6357 (class class class)co 7158 infcinf 8907 ℝcr 10538 0cc0 10539 1c1 10540 + caddc 10542 < clt 10677 − cmin 10872 / cdiv 11299 ℕcn 11640 ℤcz 11984 ...cfz 12895 ♯chash 13693 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-rep 5192 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-addrcl 10600 ax-mulcl 10601 ax-mulrcl 10602 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-i2m1 10607 ax-1ne0 10608 ax-1rid 10609 ax-rnegex 10610 ax-rrecex 10611 ax-cnre 10612 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 ax-pre-mulgt0 10616 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rmo 3148 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-pss 3956 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-tp 4574 df-op 4576 df-uni 4841 df-int 4879 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-tr 5175 df-id 5462 df-eprel 5467 df-po 5476 df-so 5477 df-fr 5516 df-we 5518 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-pred 6150 df-ord 6196 df-on 6197 df-lim 6198 df-suc 6199 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-om 7583 df-1st 7691 df-2nd 7692 df-wrecs 7949 df-recs 8010 df-rdg 8048 df-1o 8104 df-oadd 8108 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-fin 8515 df-sup 8908 df-inf 8909 df-dju 9332 df-card 9370 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-sub 10874 df-neg 10875 df-nn 11641 df-2 11703 df-n0 11901 df-z 11985 df-uz 12247 df-fz 12896 df-hash 13694 |
This theorem is referenced by: ballotlem1c 31767 |
Copyright terms: Public domain | W3C validator |