I'm looking for a tool (GUI preferred but CLI would work) that allows me to input math expressions and then perform manipulations of them but restricts me to only mathematically valid operations. Also, the tool must be able to save a session and later prove that the given set of saved operations is valid. Note: I am Not looking for a sy...
...And have they published the results where I can afford to read them? ...
Hi, I have the defined inductive types: Inductive InL (A:Type) (y:A) : list A -> Prop := | InHead : forall xs:list A, InL y (cons y xs) | InTail : forall (x:A) (xs:list A), InL y xs -> InL y (cons x xs). Inductive SubSeq (A:Type) : list A -> list A -> Prop := | SubNil : forall l:list A, SubSeq nil l | SubCons1 : forall (x:A) (...