author | berghofe |
Thu, 22 Sep 2011 16:50:23 +0200 | |
changeset 45044 | 2fae15f8984d |
child 45065 | 9a98c3bc72e4 |
permissions | -rw-r--r-- |
(* Title: HOL/SPARK/Examples/Gcd/Greatest_Common_Divisor.thy Author: Stefan Berghofer Copyright: secunet Security Networks AG *) theory Simple_Greatest_Common_Divisor imports SPARK GCD begin spark_proof_functions gcd = "gcd :: int \<Rightarrow> int \<Rightarrow> int" spark_open "simple_greatest_common_divisor/g_c_d.siv" spark_vc procedure_g_c_d_4 using `0 < d` `gcd c d = gcd m n` by (simp add: gcd_non_0_int) spark_vc procedure_g_c_d_9 using `0 \<le> c` `gcd c 0 = gcd m n` by simp spark_end end