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src/HOL/SMT.thy
changeset 79576 157de27b0863
parent 78936 ddf255a4ccc3
child 79623 e905fb37467f 
--- a/src/HOL/SMT.thy	Mon Feb 05 10:06:34 2024 +0100
+++ b/src/HOL/SMT.thy	Fri Jan 19 13:56:26 2024 +0100
@@ -252,6 +252,9 @@
 lemma verit_and_pos:
   \<open>(a \<Longrightarrow> \<not>(b \<and> c) \<or> A) \<Longrightarrow> \<not>(a \<and> b \<and> c) \<or> A\<close>
   \<open>(a \<Longrightarrow> b \<Longrightarrow> A) \<Longrightarrow> \<not>(a \<and> b) \<or> A\<close>
+  by blast+
+
+lemma verit_farkas:
   \<open>(a \<Longrightarrow> A) \<Longrightarrow> \<not>a \<or> A\<close>
   \<open>(\<not>a \<Longrightarrow> A) \<Longrightarrow> a \<or> A\<close>
   by blast+
isabelle