Package list-map: The list map function

Information

name	list-map
version	1.24
description	The list map function
author	Joe Hurd <joe@gilith.com>
license	MIT
requires	bool function set list-def list-thm list-length list-set list-append
show	Data.Bool Data.List Function Number.Natural Set

Files

Package tarball list-map-1.24.tgz
Theory file list-map.thy (included in the package tarball)

Defined Constant

Data
- List
  - map

Theorems

⊦ map id = id

⊦ ∀f. map f [] = []

⊦ ∀l. map (λx. x) l = l

⊦ ∀l f. length (map f l) = length l

⊦ ∀f l. toSet (map f l) = image f (toSet l)

⊦ ∀f l. map f l = [] ⇔ l = []

⊦ ∀f g l. map (g ∘ f) l = map g (map f l)

⊦ ∀f h t. map f (h :: t) = f h :: map f t

⊦ ∀f l1 l2. map f (l1 @ l2) = map f l1 @ map f l2

⊦ ∀f. (∀m. ∃l. map f l = m) ⇔ ∀y. ∃x. f x = y

⊦ ∀f. (∀l m. map f l = map f m ⇒ l = m) ⇔ ∀x y. f x = f y ⇒ x = y

Input Type Operators

→
bool
Data
- List
  - list
Number
- Natural
  - natural
Set
- set

Input Constants

=
select
Data
- Bool
  - ∀
  - ∧
  - ⇒
  - ∃
  - ∨
  - ¬
  - F
  - T
- List
  - ::
  - @
  - []
  - length
  - toSet
Function
- id
- ∘
Number
- Natural
  - suc
  - zero
Set
- ∅
- image
- insert

Assumptions

⊦ T

⊦ id = λx. x

⊦ ¬F ⇔ T

⊦ ¬T ⇔ F

⊦ length [] = 0

⊦ toSet [] = ∅

⊦ ∀t. t ⇒ t

⊦ F ⇔ ∀p. p

⊦ ∀x. id x = x

⊦ ∀t. t ∨ ¬t

⊦ (¬) = λp. p ⇒ F

⊦ (∃) = λP. P ((select) P)

⊦ ∀t. (∀x. t) ⇔ t

⊦ ∀t. (λx. t x) = t

⊦ (∀) = λp. p = λx. T

⊦ ∀t. ¬¬t ⇔ t

⊦ ∀t. (T ⇔ t) ⇔ t

⊦ ∀t. F ∧ t ⇔ F

⊦ ∀t. T ∧ t ⇔ t

⊦ ∀t. t ∧ T ⇔ t

⊦ ∀t. F ⇒ t ⇔ T

⊦ ∀t. T ⇒ t ⇔ t

⊦ ∀t. t ⇒ T ⇔ T

⊦ ∀t. F ∨ t ⇔ t

⊦ ∀t. T ∨ t ⇔ T

⊦ ∀t. t ∨ F ⇔ t

⊦ ∀t. t ∨ T ⇔ T

⊦ ∀l. [] @ l = l

⊦ ∀f. image f ∅ = ∅

⊦ ∀t. (F ⇔ t) ⇔ ¬t

⊦ ∀t. t ⇒ F ⇔ ¬t

⊦ (⇒) = λp q. p ∧ q ⇔ p

⊦ ∀t. (t ⇔ T) ∨ (t ⇔ F)

⊦ ∀h t. ¬(h :: t = [])

⊦ ∀x y. x = y ⇔ y = x

⊦ ∀t1 t2. t1 ∨ t2 ⇔ t2 ∨ t1

⊦ ∀h t. length (h :: t) = suc (length t)

⊦ (∧) = λp q. (λf. f p q) = λf. f T T

⊦ ∀P. ¬(∀x. P x) ⇔ ∃x. ¬P x

⊦ ∀P. ¬(∃x. P x) ⇔ ∀x. ¬P x

⊦ (∃) = λP. ∀q. (∀x. P x ⇒ q) ⇒ q

⊦ ∀h t. toSet (h :: t) = insert h (toSet t)

⊦ ∀f g x. (f ∘ g) x = f (g x)

⊦ ∀f g. (∀x. f x = g x) ⇔ f = g

⊦ (∨) = λp q. ∀r. (p ⇒ r) ⇒ (q ⇒ r) ⇒ r

⊦ ∀P Q. P ∨ (∃x. Q x) ⇔ ∃x. P ∨ Q x

⊦ ∀P Q. (∃x. P x) ∧ Q ⇔ ∃x. P x ∧ Q

⊦ ∀P Q. (∃x. P x) ⇒ Q ⇔ ∀x. P x ⇒ Q

⊦ ∀t1 t2 t3. (t1 ∨ t2) ∨ t3 ⇔ t1 ∨ t2 ∨ t3

⊦ ∀l h t. (h :: t) @ l = h :: t @ l

⊦ ∀P. (∀x. ∃y. P x y) ⇔ ∃y. ∀x. P x (y x)

⊦ ∀f x s. image f (insert x s) = insert (f x) (image f s)

⊦ ∀P. P [] ∧ (∀a0 a1. P a1 ⇒ P (a0 :: a1)) ⇒ ∀x. P x

⊦ ∀h1 h2 t1 t2. h1 :: t1 = h2 :: t2 ⇔ h1 = h2 ∧ t1 = t2

⊦ ∀NIL' CONS'.
∃fn. fn [] = NIL' ∧ ∀a0 a1. fn (a0 :: a1) = CONS' a0 a1 (fn a1)