<keyword>symmetry</keyword>
<keyword>simplify</keyword>
<keyword>split</keyword>
+ <keyword>subst</keyword>
<keyword>to</keyword>
<keyword>transitivity</keyword>
<keyword>unfold</keyword>
<keyword>whd</keyword>
- </keyword-list>
+ (* Tattiche Aggiunte *)
+ <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>done</keyword>
+</keyword-list>
<keyword-list _name = "Tacticals" style = "Keyword" case-sensitive="TRUE">
<keyword>try</keyword>
<keyword>first</keyword>
<keyword>focus</keyword>
<keyword>unfocus</keyword>
+ <keyword>progress</keyword>
</keyword-list>