Изменения

<tex>S\toRightarrow(\boldsymbol{S})\toRightarrow(SS\boldsymbol{S}S)\toRightarrow((S)\boldsymbol{S})\toRightarrow((\boldsymbol{S})(S))\toRightarrow(()(\boldsymbol{S}))\toRightarrow(()())</tex>.

<tex>S\toRightarrow(\boldsymbol{S})\toRightarrow(SS\boldsymbol{S}S)\rightarrow((S)\boldsymbol{S})\rightarrow((\boldsymbol{S})(S))\rightarrow</tex><br/><tex>\rightarrow((SS\boldsymbol{S}S)((S)))\rightarrow (((\boldsymbol{S})S)((S))) \rightarrow ((()\boldsymbol{S})((S)))\rightarrow</tex><br/><tex>\rightarrow((()(\boldsymbol{S}))((S)))\rightarrow ((()())((\boldsymbol{S})))\rightarrow ((()())(()))</tex>.