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Diffstat (limited to 'backends/hol4/divDefExampleTheory.sig')
-rw-r--r-- | backends/hol4/divDefExampleTheory.sig | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/backends/hol4/divDefExampleTheory.sig b/backends/hol4/divDefExampleTheory.sig new file mode 100644 index 00000000..29e98856 --- /dev/null +++ b/backends/hol4/divDefExampleTheory.sig @@ -0,0 +1,188 @@ +signature divDefExampleTheory = +sig + type thm = Thm.thm + + (* Definitions *) + val even_odd_body_def : thm + val list_t_TY_DEF : thm + val list_t_case_def : thm + val list_t_size_def : thm + val nth_body_def : thm + + (* Theorems *) + val datatype_list_t : thm + val even_def : thm + val even_odd_body_is_valid : thm + val even_odd_body_is_valid_aux : thm + val list_t_11 : thm + val list_t_Axiom : thm + val list_t_case_cong : thm + val list_t_case_eq : thm + val list_t_distinct : thm + val list_t_induction : thm + val list_t_nchotomy : thm + val nth_body_is_valid : thm + val nth_body_is_valid_aux : thm + val nth_def : thm + val odd_def : thm + + val divDefExample_grammars : type_grammar.grammar * term_grammar.grammar +(* + [divDef] Parent theory of "divDefExample" + + [even_odd_body_def] Definition + + ⊢ ∀f x. + even_odd_body f x = + case x of + INL 0 => Return (INR (INL T)) + | INL i => + (case f (INR (INR (INL (i − 1)))) of + Return (INL v) => Fail Failure + | Return (INR (INL v2)) => Fail Failure + | Return (INR (INR (INL v4))) => Fail Failure + | Return (INR (INR (INR b))) => Return (INR (INL b)) + | Fail e => Fail e + | Diverge => Diverge) + | INR (INL v8) => Fail Failure + | INR (INR (INL 0)) => Return (INR (INR (INR F))) + | INR (INR (INL i')) => + (case f (INL (i' − 1)) of + Return (INL v) => Fail Failure + | Return (INR (INL b)) => Return (INR (INR (INR b))) + | Return (INR (INR v3)) => Fail Failure + | Fail e => Fail e + | Diverge => Diverge) + | INR (INR (INR v11)) => Fail Failure + + [list_t_TY_DEF] Definition + + ⊢ ∃rep. + TYPE_DEFINITION + (λa0'. + ∀ $var$('list_t'). + (∀a0'. + (∃a0 a1. + a0' = + (λa0 a1. + ind_type$CONSTR 0 a0 + (ind_type$FCONS a1 (λn. ind_type$BOTTOM))) + a0 a1 ∧ $var$('list_t') a1) ∨ + a0' = + ind_type$CONSTR (SUC 0) ARB (λn. ind_type$BOTTOM) ⇒ + $var$('list_t') a0') ⇒ + $var$('list_t') a0') rep + + [list_t_case_def] Definition + + ⊢ (∀a0 a1 f v. list_t_CASE (ListCons a0 a1) f v = f a0 a1) ∧ + ∀f v. list_t_CASE ListNil f v = v + + [list_t_size_def] Definition + + ⊢ (∀f a0 a1. + list_t_size f (ListCons a0 a1) = 1 + (f a0 + list_t_size f a1)) ∧ + ∀f. list_t_size f ListNil = 0 + + [nth_body_def] Definition + + ⊢ ∀f x. + nth_body f x = + case x of + INL x => + (let + (ls,i) = x + in + case ls of + ListCons x tl => + if u32_to_int i = 0 then Return (INR x) + else + do + i0 <- u32_sub i (int_to_u32 1); + x <- + case f (INL (tl,i0)) of + Return (INL v) => Fail Failure + | Return (INR x) => Return x + | Fail e => Fail e + | Diverge => Diverge; + Return (INR x) + od + | ListNil => Fail Failure) + | INR v3 => Fail Failure + + [datatype_list_t] Theorem + + ⊢ DATATYPE (list_t ListCons ListNil) + + [even_def] Theorem + + ⊢ ∀i. even i = if i = 0 then Return T else odd (i − 1) + + [even_odd_body_is_valid] Theorem + + ⊢ is_valid_fp_body (SUC (SUC 0)) even_odd_body + + [even_odd_body_is_valid_aux] Theorem + + ⊢ is_valid_fp_body (SUC (SUC n)) even_odd_body + + [list_t_11] Theorem + + ⊢ ∀a0 a1 a0' a1'. + ListCons a0 a1 = ListCons a0' a1' ⇔ a0 = a0' ∧ a1 = a1' + + [list_t_Axiom] Theorem + + ⊢ ∀f0 f1. ∃fn. + (∀a0 a1. fn (ListCons a0 a1) = f0 a0 a1 (fn a1)) ∧ + fn ListNil = f1 + + [list_t_case_cong] Theorem + + ⊢ ∀M M' f v. + M = M' ∧ (∀a0 a1. M' = ListCons a0 a1 ⇒ f a0 a1 = f' a0 a1) ∧ + (M' = ListNil ⇒ v = v') ⇒ + list_t_CASE M f v = list_t_CASE M' f' v' + + [list_t_case_eq] Theorem + + ⊢ list_t_CASE x f v = v' ⇔ + (∃t l. x = ListCons t l ∧ f t l = v') ∨ x = ListNil ∧ v = v' + + [list_t_distinct] Theorem + + ⊢ ∀a1 a0. ListCons a0 a1 ≠ ListNil + + [list_t_induction] Theorem + + ⊢ ∀P. (∀l. P l ⇒ ∀t. P (ListCons t l)) ∧ P ListNil ⇒ ∀l. P l + + [list_t_nchotomy] Theorem + + ⊢ ∀ll. (∃t l. ll = ListCons t l) ∨ ll = ListNil + + [nth_body_is_valid] Theorem + + ⊢ is_valid_fp_body (SUC (SUC 0)) nth_body + + [nth_body_is_valid_aux] Theorem + + ⊢ is_valid_fp_body (SUC (SUC n)) nth_body + + [nth_def] Theorem + + ⊢ ∀ls i. + nth ls i = + case ls of + ListCons x tl => + if u32_to_int i = 0 then Return x + else do i0 <- u32_sub i (int_to_u32 1); nth tl i0 od + | ListNil => Fail Failure + + [odd_def] Theorem + + ⊢ ∀i. odd i = if i = 0 then Return F else even (i − 1) + + +*) +end |