Package parser-stream-def: Definition of parse streams

Information

name	parser-stream-def
version	1.36
description	Definition of parse streams
author	Joe Hurd <joe@gilith.com>
license	MIT
provenance	HOL Light theory extracted on 2011-11-28
requires	bool natural list
show	Data.Bool Data.List Data.Option Data.Pair Number.Natural Parser.Stream Relation

Files

Package tarball parser-stream-def-1.36.tgz
Theory file parser-stream-def.thy (included in the package tarball)

Defined Type Operator

Parser
- Stream
  - stream

Defined Constants

Parser
- Stream
  - append
  - case
  - eof
  - error
  - fromList
  - isProperSuffix
  - isSuffix
  - length
  - stream
  - toList

Theorems

⊦ length eof = 0

⊦ length error = 0

⊦ toList error = none

⊦ toList eof = some []

⊦ ∀s. ¬isProperSuffix s eof

⊦ ∀s. ¬isProperSuffix s error

⊦ ∀s. append [] s = s

⊦ ∀l. fromList l = append l eof

⊦ ∀a s. length (stream a s) = suc (length s)

⊦ ∀e b f. case e b f eof = b

⊦ ∀e b f. case e b f error = e

⊦ ∀s s'. isSuffix s s' ⇔ s = s' ∨ isProperSuffix s s'

⊦ ∀h t s. append (h :: t) s = stream h (append t s)

⊦ ∀a s.
toList (stream a s) =
case toList s of none → none | some l → some (a :: l)

⊦ ∀s a s'. isProperSuffix s (stream a s') ⇔ s = s' ∨ isProperSuffix s s'

⊦ ∀e b f a s. case e b f (stream a s) = f a s

⊦ ∀P. P error ∧ P eof ∧ (∀a0 a1. P a1 ⇒ P (stream a0 a1)) ⇒ ∀x. P x

⊦ ∀f0 f1 f2.
    ∃fn.
      fn error = f0 ∧ fn eof = f1 ∧
      ∀a0 a1. fn (stream a0 a1) = f2 a0 a1 (fn a1)

Input Type Operators

→
bool
Data
- List
  - list
- Option
  - option
Number
- Natural
  - natural

Input Constants

=
select
Data
- Bool
  - ∀
  - ∧
  - ⇒
  - ∃
  - ∃!
  - ∨
  - ¬
  - cond
  - F
  - T
- List
  - ::
  - []
- Option
  - case
  - none
  - some
Number
- Natural
  - *
  - +
  - <
  - ≤
  - bit0
  - bit1
  - even
  - exp
  - suc
  - zero

Assumptions

⊦ T

⊦ ¬F ⇔ T

⊦ ¬T ⇔ F

⊦ bit0 0 = 0

⊦ ∀n. 0 ≤ n

⊦ F ⇔ ∀p. p

⊦ (¬) = λp. p ⇒ F

⊦ (∃) = λP. P ((select) P)

⊦ ∀a. ∃!x. x = a

⊦ ∀t. (∀x. t) ⇔ t

⊦ ∀t. (∃x. t) ⇔ t

⊦ ∀t. (λx. t x) = t

⊦ (∀) = λp. p = λx. T

⊦ ∀t. ¬¬t ⇔ t

⊦ ∀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

⊦ ∀n. ¬(suc n = 0)

⊦ ∀n. 0 + n = n

⊦ ∀t. (F ⇔ t) ⇔ ¬t

⊦ ∀t. (t ⇔ F) ⇔ ¬t

⊦ ∀t. t ⇒ F ⇔ ¬t

⊦ ∀n. even (2 * n)

⊦ ∀n. bit1 n = suc (bit0 n)

⊦ ∀m. exp m 0 = 1

⊦ (⇒) = λp q. p ∧ q ⇔ p

⊦ ∀t. (t ⇔ T) ∨ (t ⇔ F)

⊦ ∀n. even (suc n) ⇔ ¬even n

⊦ ∀m. m ≤ 0 ⇔ m = 0

⊦ ∀t1 t2. (if F then t1 else t2) = t2

⊦ ∀t1 t2. (if T then t1 else t2) = t1

⊦ ∀n. bit0 (suc n) = suc (suc (bit0 n))

⊦ ∀x y. x = y ⇔ y = x

⊦ ∀t1 t2. t1 ∨ t2 ⇔ t2 ∨ t1

⊦ ∀n. 2 * n = n + n

⊦ ∀m n. ¬(m < n ∧ n ≤ m)

⊦ ∀m n. ¬(m ≤ n ∧ n < m)

⊦ ∀m n. suc m ≤ n ⇔ m < n

⊦ (∧) = λp q. (λf. f p q) = λf. f T T

⊦ (∃) = λP. ∀q. (∀x. P x ⇒ q) ⇒ q

⊦ ∀m n. m + suc n = suc (m + n)

⊦ ∀m n. suc m + n = suc (m + n)

⊦ ∀m n. suc m = suc n ⇔ m = n

⊦ ∀m n. even (m * n) ⇔ even m ∨ even n

⊦ ∀m n. even (m + n) ⇔ even m ⇔ even n

⊦ ∀m n. exp m (suc n) = m * exp m n

⊦ ∀f g. (∀x. f x = g x) ⇔ f = g

⊦ ∀P a. (∃x. a = x ∧ P x) ⇔ P a

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

⊦ ∀m n. m ≤ n ⇔ m < n ∨ m = n

⊦ ∀m n. m ≤ n ∧ n ≤ m ⇔ m = n

⊦ ∀P Q. (∃x. P ∧ Q x) ⇔ P ∧ ∃x. Q x

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

⊦ ∀m n p. m * (n * p) = m * n * p

⊦ ∀m n p. m + p = n + p ⇔ m = n

⊦ ∀P x. (∀y. P y ⇔ y = x) ⇒ (select) P = x

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

⊦ ∀m n. m ≤ suc n ⇔ m = suc n ∨ m ≤ n

⊦ ∀m n. m * n = 0 ⇔ m = 0 ∨ n = 0

⊦ ∀P. P 0 ∧ (∀n. P n ⇒ P (suc n)) ⇒ ∀n. P n

⊦ ∀m n. exp m n = 0 ⇔ m = 0 ∧ ¬(n = 0)

⊦ (∃!) = λP. (∃) P ∧ ∀x y. P x ∧ P y ⇒ x = y

⊦ ∀P Q. (∀x. P x ∧ Q x) ⇔ (∀x. P x) ∧ ∀x. Q x

⊦ ∀P Q. (∀x. P x ⇒ Q x) ⇒ (∀x. P x) ⇒ ∀x. Q x

⊦ ∀P Q. (∀x. P x ⇒ Q x) ⇒ (∃x. P x) ⇒ ∃x. Q x

⊦ ∀P Q. (∀x. P x) ∧ (∀x. Q x) ⇔ ∀x. P x ∧ Q x

⊦ ∀e f. ∃!fn. fn 0 = e ∧ ∀n. fn (suc n) = f (fn n) n

⊦ ∀m n p. m * n = m * p ⇔ m = 0 ∨ n = p

⊦ ∀m n p. m * n ≤ m * p ⇔ m = 0 ∨ n ≤ p

⊦ ∀m n p. m * n < m * p ⇔ ¬(m = 0) ∧ n < p

⊦ ∀A B C D. (A ⇒ B) ∧ (C ⇒ D) ⇒ A ∧ C ⇒ B ∧ D

⊦ ∀A B C D. (A ⇒ B) ∧ (C ⇒ D) ⇒ A ∨ C ⇒ B ∨ D

⊦ ∀P. (∀x. ∃!y. P x y) ⇔ ∃f. ∀x y. P x y ⇔ f x = y

⊦ ∀P c x y. P (if c then x else y) ⇔ (c ⇒ P x) ∧ (¬c ⇒ P y)

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

⊦ ∀P. (∃!x. P x) ⇔ (∃x. P x) ∧ ∀x x'. P x ∧ P x' ⇒ x = x'