+ <keyword>assume</keyword>
+ <keyword>suppose</keyword>
+ <keyword>by</keyword>
+ <keyword>is</keyword>
+ <keyword>or</keyword>
+ <keyword>equivalent</keyword>
+ <keyword>equivalently</keyword>
+ <keyword>we</keyword>
+ <keyword>prove</keyword>
+ <keyword>proved</keyword>
+ <keyword>need</keyword>
+ <keyword>proceed</keyword>
+ <keyword>induction</keyword>
+ <keyword>inductive</keyword>
+ <keyword>case</keyword>
+ <keyword>base</keyword>
+ <keyword>let</keyword>
+ <keyword>such</keyword>
+ <keyword>that</keyword>
+ <keyword>by</keyword>
+ <keyword>have</keyword>
+ <keyword>and</keyword>
+ <keyword>the</keyword>
+ <keyword>thesis</keyword>
+ <keyword>becomes</keyword>
+ <keyword>hypothesis</keyword>
+ <keyword>know</keyword>
+ <keyword>case</keyword>
+ <keyword>obtain</keyword>
+ <keyword>conclude</keyword>
+ <keyword>done</keyword>
+ <keyword>rule</keyword>
+</keyword-list>
+
+<keyword-list _name = "NTactics" style = "Others 2" case-sensitive="TRUE">
+ <keyword>napply</keyword>
+ <keyword>ncases</keyword>
+ <keyword>nletin</keyword>
+ <keyword>nauto</keyword>
+ <keyword>nelim</keyword>
+ <keyword>nwhd</keyword>
+ <keyword>nnormalize</keyword>
+ <keyword>nassumption</keyword>
+ <keyword>ngeneralize</keyword>
+ <keyword>nchange</keyword>
+ <keyword>nrewrite</keyword>
+ <keyword>ncut</keyword>
+ <keyword>nlapply</keyword>
+ <keyword>ndestruct</keyword>
+</keyword-list>