Mercurial Mercurial > repos > isabelle / comparison
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
src/HOL/Word/Bits_Bit.thy
changeset 70183 3ea80c950023
parent 67120 491fd7f0b5df
child 70191 bdc835d934b7
equal deleted inserted replaced
70182:ca9dfa7ee3bd 70183:3ea80c950023 
    80 
    80 
    81 lemma bit_AND_eq_1_iff [simp]: "a AND b = 1 \<longleftrightarrow> a = 1 \<and> b = 1"
 
    81 lemma bit_AND_eq_1_iff [simp]: "a AND b = 1 \<longleftrightarrow> a = 1 \<and> b = 1"
 
    82   for a b :: bit
 
    82   for a b :: bit
 
    83   by (induct a) simp_all
 
    83   by (induct a) simp_all
 
    84 
    84 
       
    85 lemma bit_nand_same [simp]: "x AND NOT x = 0"
 
       
    86   for x :: bit
 
       
    87   by (cases x) simp_all
 
       
    88 
    85 end
 
    89 end
isabelle