Step
*
2
2
of Lemma
archive-consensus-accum-num
1. V : Type
2. A : Id List
3. t : ℕ+
4. f : (V List) ─→ V
5. v0 : V
6. IdDeq ∈ EqDecider({b:Id| (b ∈ A)} )
7. ys : consensus-rcv(V;A) List@i
8. y2 : {b:Id| (b ∈ A)} @i
9. y4 : ℕ@i
10. y5 : V@i
11. Vote[y2;y4;y5] ∈ consensus-rcv(V;A)
12. v1 : 𝔹@i
13. v3 : ℤ@i
14. v5 : {a:Id| (a ∈ A)} List@i
15. v7 : V List@i
16. v8 : V@i
17. consensus-accum-num-state(t;f;v0;ys) = <v1, v3, v5, v7, v8> ∈ (𝔹 × ℤ × {a:Id| (a ∈ A)} List × V List × V)@i
18. (((2 * t) + 1) ≤ ||remove-repeats(IdDeq;map(λp.(fst(p));votes-from-inning(v3 - 2;ys)))||) supposing
((votes-from-inning(v3 - 1;ys) = [] ∈ (({b:Id| (b ∈ A)} × V) List)) and
1 < v3)@i
19. y4 < v3 - 1
20. ∀[v@0:V]. ∀[i:ℤ]. ↑v1 supposing archive-condition(V;A;t;f;i;v@0;ys)@i
21. filter(λr.v3 - 1 <z inning(r);ys) = [] ∈ (consensus-rcv(V;A) List)@i
22. ||v5|| = ||v7|| ∈ ℤ@i
23. zip(v5;v7) = votes-from-inning(v3 - 1;ys) ∈ (({b:Id| (b ∈ A)} × V) List)@i
24. 0 ≤ v3@i
25. 1 ≤ v3 supposing ¬↑null(ys)@i
26. ||values-for-distinct(IdDeq;votes-from-inning(v3 - 1;ys))|| ≤ (2 * t)@i
27. filter(λr.v3 - 1 <z inning(r);ys @ [Vote[y2;y4;y5]]) = [] ∈ (consensus-rcv(V;A) List)@i
28. ||v5|| = ||v7|| ∈ ℤ@i
29. zip(v5;v7) = votes-from-inning(v3 - 1;ys @ [Vote[y2;y4;y5]]) ∈ (({b:Id| (b ∈ A)} × V) List)@i
30. 0 ≤ v3@i
31. 1 ≤ v3 supposing ¬↑null(ys @ [Vote[y2;y4;y5]])@i
32. ||values-for-distinct(IdDeq;votes-from-inning(v3 - 1;ys @ [Vote[y2;y4;y5]]))|| ≤ (2 * t)@i
33. v@0 : V
34. i : ℤ
35. 0 < i
36. ||values-for-distinct(IdDeq;votes-from-inning(i - 1;ys))|| ≤ (2 * t)
37. ↑null(filter(λr.i - 1 <z inning(r);ys))
38. ((2 * t) + 1) ≤ ||values-for-distinct(IdDeq;votes-from-inning(i - 1;ys @ [Vote[y2;y4;y5]]))||
39. (f values-for-distinct(IdDeq;votes-from-inning(i - 1;ys @ [Vote[y2;y4;y5]]))) = v@0 ∈ V
⊢ False
BY
{ (Assert i < v3 BY
(Assert ⌈y4 = (i - 1) ∈ ℤ⌉⋅
THEN Auto'
THEN SupposeNot
THEN OnMaybeHyp 37 (\h.
(RepUR ``votes-from-inning`` h
THEN (RWO "mapfilter-append" h THENA Auto)
THEN Fold `votes-from-inning` h
THEN Subst' votes-from-inning(i - 1;[Vote[y2;y4;y5]]) ~ [] h
THEN Try ((RWO "append-nil" h THEN Auto))
THEN RepUR ``votes-from-inning cs-rcv-vote rcvd-inning-eq rcv-vote? rcvd-vote mapfilter`` 0
THEN SplitOnConclITE
THEN Reduce 0
THEN Auto)))) }
1
1. V : Type
2. A : Id List
3. t : ℕ+
4. f : (V List) ─→ V
5. v0 : V
6. IdDeq ∈ EqDecider({b:Id| (b ∈ A)} )
7. ys : consensus-rcv(V;A) List@i
8. y2 : {b:Id| (b ∈ A)} @i
9. y4 : ℕ@i
10. y5 : V@i
11. Vote[y2;y4;y5] ∈ consensus-rcv(V;A)
12. v1 : 𝔹@i
13. v3 : ℤ@i
14. v5 : {a:Id| (a ∈ A)} List@i
15. v7 : V List@i
16. v8 : V@i
17. consensus-accum-num-state(t;f;v0;ys) = <v1, v3, v5, v7, v8> ∈ (𝔹 × ℤ × {a:Id| (a ∈ A)} List × V List × V)@i
18. (((2 * t) + 1) ≤ ||remove-repeats(IdDeq;map(λp.(fst(p));votes-from-inning(v3 - 2;ys)))||) supposing
((votes-from-inning(v3 - 1;ys) = [] ∈ (({b:Id| (b ∈ A)} × V) List)) and
1 < v3)@i
19. y4 < v3 - 1
20. ∀[v@0:V]. ∀[i:ℤ]. ↑v1 supposing archive-condition(V;A;t;f;i;v@0;ys)@i
21. filter(λr.v3 - 1 <z inning(r);ys) = [] ∈ (consensus-rcv(V;A) List)@i
22. ||v5|| = ||v7|| ∈ ℤ@i
23. zip(v5;v7) = votes-from-inning(v3 - 1;ys) ∈ (({b:Id| (b ∈ A)} × V) List)@i
24. 0 ≤ v3@i
25. 1 ≤ v3 supposing ¬↑null(ys)@i
26. ||values-for-distinct(IdDeq;votes-from-inning(v3 - 1;ys))|| ≤ (2 * t)@i
27. filter(λr.v3 - 1 <z inning(r);ys @ [Vote[y2;y4;y5]]) = [] ∈ (consensus-rcv(V;A) List)@i
28. ||v5|| = ||v7|| ∈ ℤ@i
29. zip(v5;v7) = votes-from-inning(v3 - 1;ys @ [Vote[y2;y4;y5]]) ∈ (({b:Id| (b ∈ A)} × V) List)@i
30. 0 ≤ v3@i
31. 1 ≤ v3 supposing ¬↑null(ys @ [Vote[y2;y4;y5]])@i
32. ||values-for-distinct(IdDeq;votes-from-inning(v3 - 1;ys @ [Vote[y2;y4;y5]]))|| ≤ (2 * t)@i
33. v@0 : V
34. i : ℤ
35. 0 < i
36. ||values-for-distinct(IdDeq;votes-from-inning(i - 1;ys))|| ≤ (2 * t)
37. ↑null(filter(λr.i - 1 <z inning(r);ys))
38. ((2 * t) + 1) ≤ ||values-for-distinct(IdDeq;votes-from-inning(i - 1;ys @ [Vote[y2;y4;y5]]))||
39. (f values-for-distinct(IdDeq;votes-from-inning(i - 1;ys @ [Vote[y2;y4;y5]]))) = v@0 ∈ V
40. i < v3
⊢ False
Latex:
1. V : Type
2. A : Id List
3. t : \mBbbN{}\msupplus{}
4. f : (V List) {}\mrightarrow{} V
5. v0 : V
6. IdDeq \mmember{} EqDecider(\{b:Id| (b \mmember{} A)\} )
7. ys : consensus-rcv(V;A) List@i
8. y2 : \{b:Id| (b \mmember{} A)\} @i
9. y4 : \mBbbN{}@i
10. y5 : V@i
11. Vote[y2;y4;y5] \mmember{} consensus-rcv(V;A)
12. v1 : \mBbbB{}@i
13. v3 : \mBbbZ{}@i
14. v5 : \{a:Id| (a \mmember{} A)\} List@i
15. v7 : V List@i
16. v8 : V@i
17. consensus-accum-num-state(t;f;v0;ys) = <v1, v3, v5, v7, v8>@i
18. (((2 * t) + 1) \mleq{} ||remove-repeats(IdDeq;map(\mlambda{}p.(fst(p));votes-from-inning(v3
- 2;ys)))||) supposing
((votes-from-inning(v3 - 1;ys) = []) and
1 < v3)@i
19. y4 < v3 - 1
20. \mforall{}[v@0:V]. \mforall{}[i:\mBbbZ{}]. \muparrow{}v1 supposing archive-condition(V;A;t;f;i;v@0;ys)@i
21. filter(\mlambda{}r.v3 - 1 <z inning(r);ys) = []@i
22. ||v5|| = ||v7||@i
23. zip(v5;v7) = votes-from-inning(v3 - 1;ys)@i
24. 0 \mleq{} v3@i
25. 1 \mleq{} v3 supposing \mneg{}\muparrow{}null(ys)@i
26. ||values-for-distinct(IdDeq;votes-from-inning(v3 - 1;ys))|| \mleq{} (2 * t)@i
27. filter(\mlambda{}r.v3 - 1 <z inning(r);ys @ [Vote[y2;y4;y5]]) = []@i
28. ||v5|| = ||v7||@i
29. zip(v5;v7) = votes-from-inning(v3 - 1;ys @ [Vote[y2;y4;y5]])@i
30. 0 \mleq{} v3@i
31. 1 \mleq{} v3 supposing \mneg{}\muparrow{}null(ys @ [Vote[y2;y4;y5]])@i
32. ||values-for-distinct(IdDeq;votes-from-inning(v3 - 1;ys @ [Vote[y2;y4;y5]]))|| \mleq{} (2 * t)@i
33. v@0 : V
34. i : \mBbbZ{}
35. 0 < i
36. ||values-for-distinct(IdDeq;votes-from-inning(i - 1;ys))|| \mleq{} (2 * t)
37. \muparrow{}null(filter(\mlambda{}r.i - 1 <z inning(r);ys))
38. ((2 * t) + 1) \mleq{} ||values-for-distinct(IdDeq;votes-from-inning(i - 1;ys @ [Vote[y2;y4;y5]]))||
39. (f values-for-distinct(IdDeq;votes-from-inning(i - 1;ys @ [Vote[y2;y4;y5]]))) = v@0
\mvdash{} False
By
(Assert i < v3 BY
(Assert \mkleeneopen{}y4 = (i - 1)\mkleeneclose{}\mcdot{}
THEN Auto'
THEN SupposeNot
THEN OnMaybeHyp 37 (\mbackslash{}h.
(RepUR ``votes-from-inning`` h
THEN (RWO "mapfilter-append" h THENA Auto)
THEN Fold `votes-from-inning` h
THEN Subst' votes-from-inning(i - 1;[Vote[y2;y4;y5]]) \msim{} [] h
THEN Try ((RWO "append-nil" h THEN Auto))
THEN ...
THEN SplitOnConclITE
THEN Reduce 0
THEN Auto))))
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