Package natural-add-def: natural-add-def
Information
| name | natural-add-def |
| version | 1.5 |
| description | natural-add-def |
| author | Joe Hurd <joe@gilith.com> |
| license | HOLLight |
| provenance | HOL Light theory extracted on 2011-09-21 |
| show | Data.Bool |
Files
- Package tarball natural-add-def-1.5.tgz
- Theory file natural-add-def.thy (included in the package tarball)
Defined Constant
- Number
- Natural
- Number.Natural.+
- Natural
Theorem
⊦ (∀n. Number.Natural.+ 0 n = n) ∧
∀m n.
Number.Natural.+ (Number.Natural.suc m) n =
Number.Natural.suc (Number.Natural.+ m n)
Input Type Operators
- →
- bool
- Number
- Natural
- Number.Natural.natural
- Natural
Input Constants
- =
- select
- Data
- Bool
- ∀
- ∧
- ⇒
- ∃
- T
- Bool
- Number
- Natural
- Number.Natural.suc
- Number.Natural.zero
- Natural
Assumptions
⊦ T
⊦ (∃) = λP. P ((select) P)
⊦ (∀) = λp. p = λx. T
⊦ (⇒) = λp q. p ∧ q ⇔ p
⊦ (∧) = λp q. (λf. f p q) = λf. f T T
⊦ (∃) = λP. ∀q. (∀x. P x ⇒ q) ⇒ q
⊦ ∀e f. ∃fn. fn 0 = e ∧ ∀n. fn (Number.Natural.suc n) = f (fn n) n