Mercurial > hg > Gears > GearsAgda
annotate logic.agda @ 948:e5288029f850
RBTree fix
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Sat, 20 Jul 2024 17:01:50 +0900 |
parents | 0b791ae19543 |
children | 057d3309ed9d |
rev | line source |
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948 | 1 {-# OPTIONS --safe --cubical-compatible #-} |
579 | 2 module logic where |
3 | |
781 | 4 open import Level |
5 | |
579 | 6 open import Relation.Nullary |
781 | 7 open import Relation.Binary hiding (_⇔_) |
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isolate search function problem, and add hoareBinaryTree.agda.
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8 open import Relation.Binary.PropositionalEquality |
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isolate search function problem, and add hoareBinaryTree.agda.
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9 |
579 | 10 open import Data.Empty |
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isolate search function problem, and add hoareBinaryTree.agda.
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11 open import Data.Nat hiding (_⊔_) |
579 | 12 |
13 | |
14 data Bool : Set where | |
15 true : Bool | |
16 false : Bool | |
17 | |
18 record _∧_ {n m : Level} (A : Set n) ( B : Set m ) : Set (n ⊔ m) where | |
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79418701a283
add test and speciication
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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19 constructor ⟪_,_⟫ |
579 | 20 field |
21 proj1 : A | |
22 proj2 : B | |
23 | |
24 data _∨_ {n m : Level} (A : Set n) ( B : Set m ) : Set (n ⊔ m) where | |
25 case1 : A → A ∨ B | |
26 case2 : B → A ∨ B | |
27 | |
28 _⇔_ : {n m : Level } → ( A : Set n ) ( B : Set m ) → Set (n ⊔ m) | |
29 _⇔_ A B = ( A → B ) ∧ ( B → A ) | |
30 | |
31 contra-position : {n m : Level } {A : Set n} {B : Set m} → (A → B) → ¬ B → ¬ A | |
32 contra-position {n} {m} {A} {B} f ¬b a = ¬b ( f a ) | |
33 | |
34 double-neg : {n : Level } {A : Set n} → A → ¬ ¬ A | |
35 double-neg A notnot = notnot A | |
36 | |
37 double-neg2 : {n : Level } {A : Set n} → ¬ ¬ ¬ A → ¬ A | |
38 double-neg2 notnot A = notnot ( double-neg A ) | |
39 | |
40 de-morgan : {n : Level } {A B : Set n} → A ∧ B → ¬ ( (¬ A ) ∨ (¬ B ) ) | |
41 de-morgan {n} {A} {B} and (case1 ¬A) = ⊥-elim ( ¬A ( _∧_.proj1 and )) | |
42 de-morgan {n} {A} {B} and (case2 ¬B) = ⊥-elim ( ¬B ( _∧_.proj2 and )) | |
43 | |
44 dont-or : {n m : Level} {A : Set n} { B : Set m } → A ∨ B → ¬ A → B | |
45 dont-or {A} {B} (case1 a) ¬A = ⊥-elim ( ¬A a ) | |
46 dont-or {A} {B} (case2 b) ¬A = b | |
47 | |
48 dont-orb : {n m : Level} {A : Set n} { B : Set m } → A ∨ B → ¬ B → A | |
49 dont-orb {A} {B} (case2 b) ¬B = ⊥-elim ( ¬B b ) | |
50 dont-orb {A} {B} (case1 a) ¬B = a | |
51 | |
52 | |
53 infixr 130 _∧_ | |
54 infixr 140 _∨_ | |
55 infixr 150 _⇔_ | |
56 | |
57 _/\_ : Bool → Bool → Bool | |
58 true /\ true = true | |
59 _ /\ _ = false | |
60 | |
586
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
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61 _<B?_ : ℕ → ℕ → Bool |
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isolate search function problem, and add hoareBinaryTree.agda.
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62 ℕ.zero <B? x = true |
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isolate search function problem, and add hoareBinaryTree.agda.
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63 ℕ.suc x <B? ℕ.zero = false |
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isolate search function problem, and add hoareBinaryTree.agda.
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parents:
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64 ℕ.suc x <B? ℕ.suc xx = x <B? xx |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
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65 |
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66 -- _<BT_ : ℕ → ℕ → Set |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
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67 -- ℕ.zero <BT ℕ.zero = ⊤ |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
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changeset
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68 -- ℕ.zero <BT ℕ.suc b = ⊤ |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
579
diff
changeset
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69 -- ℕ.suc a <BT ℕ.zero = ⊥ |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
579
diff
changeset
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70 -- ℕ.suc a <BT ℕ.suc b = a <BT b |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
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changeset
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71 |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
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72 |
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isolate search function problem, and add hoareBinaryTree.agda.
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73 _≟B_ : Decidable {A = Bool} _≡_ |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
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74 true ≟B true = yes refl |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
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75 false ≟B false = yes refl |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
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76 true ≟B false = no λ() |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
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77 false ≟B true = no λ() |
0ddfa505d612
isolate search function problem, and add hoareBinaryTree.agda.
ryokka
parents:
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78 |
579 | 79 _\/_ : Bool → Bool → Bool |
80 false \/ false = false | |
81 _ \/ _ = true | |
82 | |
83 not_ : Bool → Bool | |
84 not true = false | |
85 not false = true | |
86 | |
87 _<=>_ : Bool → Bool → Bool | |
88 true <=> true = true | |
89 false <=> false = true | |
90 _ <=> _ = false | |
91 | |
92 infixr 130 _\/_ | |
93 infixr 140 _/\_ |