Package relation-well-founded-thm: Properties of well-founded relations
Information
| name | relation-well-founded-thm |
| version | 1.30 |
| description | Properties of well-founded relations |
| author | Joe Hurd <joe@gilith.com> |
| license | HOLLight |
| provenance | HOL Light theory extracted on 2011-11-27 |
| requires | bool pair relation-def relation-thm relation-well-founded-def |
| show | Data.Bool Data.Pair Relation |
Files
- Package tarball relation-well-founded-thm-1.30.tgz
- Theory file relation-well-founded-thm.thy (included in the package tarball)
Theorems
⊦ wellFounded empty
⊦ ∀r. wellFounded r ⇒ irreflexive r
⊦ ∀r s. subrelation r s ∧ wellFounded s ⇒ wellFounded r
⊦ ∀r m. wellFounded r ⇒ wellFounded (λx y. r (m x) (m y))
⊦ ∀p g h. ∃f. ∀x. f x = if p x then f (g x) else h x
⊦ ∀r. wellFounded r ⇔ ∀p. (∀x. (∀y. r y x ⇒ p y) ⇒ p x) ⇒ ∀x. p x
⊦ ∀r. wellFounded r ⇔ ∀p. (∃x. p x) ⇔ ∃x. p x ∧ ∀y. r y x ⇒ ¬p y
⊦ ∀r s.
wellFounded r ∧ wellFounded s ⇒
wellFounded (λ(x1, y1) (x2, y2). r x1 x2 ∧ s y1 y2)
⊦ ∀r s.
wellFounded r ∧ wellFounded s ⇒
wellFounded (λ(x1, y1) (x2, y2). r x1 x2 ∨ x1 = x2 ∧ s y1 y2)
⊦ ∀r s.
wellFounded r ∧ (∀a. wellFounded (s a)) ⇒
wellFounded (λ(x1, y1) (x2, y2). r x1 x2 ∨ x1 = x2 ∧ s x1 y1 y2)
Input Type Operators
- →
- bool
- Data
- Pair
- ×
- Pair
- Number
- Natural
- Number.Natural.natural
- Natural
Input Constants
- =
- select
- Data
- Bool
- ∀
- ∧
- ⇒
- ∃
- ∃!
- ∨
- ¬
- cond
- F
- T
- Pair
- ,
- Bool
- Number
- Natural
- Number.Natural.<
- Number.Natural.suc
- Number.Natural.zero
- Natural
- Relation
- empty
- irreflexive
- subrelation
- wellFounded
Assumptions
⊦ T
⊦ ¬F ⇔ T
⊦ ¬T ⇔ F
⊦ ∀t. t ⇒ t
⊦ F ⇔ ∀p. p
⊦ ∀t. t ∨ ¬t
⊦ ∀n. Number.Natural.< 0 (Number.Natural.suc n)
⊦ (¬) = λp. p ⇒ F
⊦ ∀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. F ∧ t ⇔ F
⊦ ∀t. T ∧ t ⇔ t
⊦ ∀t. t ∧ F ⇔ F
⊦ ∀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
⊦ ∀m. Number.Natural.< m 0 ⇔ F
⊦ ∀x y. ¬empty x y
⊦ ∀t. (F ⇔ t) ⇔ ¬t
⊦ ∀t. (t ⇔ F) ⇔ ¬t
⊦ ∀t. t ⇒ F ⇔ ¬t
⊦ (⇒) = λp q. p ∧ q ⇔ p
⊦ ∀t. (t ⇔ T) ∨ (t ⇔ F)
⊦ ∀t1 t2. (if F then t1 else t2) = t2
⊦ ∀t1 t2. (if T then t1 else t2) = t1
⊦ ∀p x. p x ⇒ p ((select) p)
⊦ ∀f y. (let x ← y in f x) = f y
⊦ ∀t1 t2. t1 ∧ t2 ⇔ t2 ∧ t1
⊦ ∀t1 t2. t1 ∨ t2 ⇔ t2 ∨ t1
⊦ ∀r. irreflexive r ⇔ ∀x. ¬r x x
⊦ ∀m. m = 0 ∨ ∃n. m = Number.Natural.suc n
⊦ (∧) = 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
⊦ ∀t1 t2. ¬(t1 ⇒ t2) ⇔ t1 ∧ ¬t2
⊦ ∀t1 t2. ¬t1 ⇒ ¬t2 ⇔ t2 ⇒ t1
⊦ ∀m n.
Number.Natural.< (Number.Natural.suc m) (Number.Natural.suc n) ⇔
Number.Natural.< m n
⊦ ∀P. (∀p. P p) ⇔ ∀p1 p2. P (p1, p2)
⊦ (∨) = λp q. ∀r. (p ⇒ r) ⇒ (q ⇒ r) ⇒ r
⊦ ∀PAIR'. ∃fn. ∀a0 a1. fn (a0, a1) = PAIR' a0 a1
⊦ ∀P Q. P ∧ (∃x. Q x) ⇔ ∃x. P ∧ Q x
⊦ ∀P Q. P ⇒ (∀x. Q x) ⇔ ∀x. P ⇒ Q x
⊦ ∀P Q. P ∨ (∀x. Q x) ⇔ ∀x. P ∨ Q x
⊦ ∀P Q. P ∨ (∃x. Q x) ⇔ ∃x. P ∨ Q x
⊦ ∀m n.
Number.Natural.< m (Number.Natural.suc n) ⇔
m = n ∨ Number.Natural.< m n
⊦ ∀P Q. (∃x. P x) ∧ Q ⇔ ∃x. P x ∧ Q
⊦ ∀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
⊦ ∀P x. (∀y. P y ⇔ y = x) ⇒ (select) P = x
⊦ ∀P. (∀x. ∃y. P x y) ⇔ ∃y. ∀x. P x (y x)
⊦ ∀P. P 0 ∧ (∀n. P n ⇒ P (Number.Natural.suc n)) ⇒ ∀n. P n
⊦ ∀r s. subrelation r s ⇔ ∀x y. r x y ⇒ s x y
⊦ (∃!) = 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) ∨ (∃x. Q x) ⇔ ∃x. P x ∨ Q x
⊦ ∀e f. ∃!fn. fn 0 = e ∧ ∀n. fn (Number.Natural.suc n) = f (fn n) n
⊦ ∀P c x y. P (if c then x else y) ⇔ (c ⇒ P x) ∧ (¬c ⇒ P y)
⊦ ∀r. wellFounded r ⇔ ∀p. (∃x. p x) ⇒ ∃x. p x ∧ ∀y. r y x ⇒ ¬p y