actualize rg with cell by morphism :obj → cell; [ ] → [ ]; [ ] → [ ]; => → =>; _∃ → _∃; mk → mk; ×× → ××; .obj → .obj; mk → mk; [ ] → [ ]; [ ]o → [ ]o; ==> → ==>; _∃ → _∃; [ ] → [ ]; [ ] → [ ]; rely → rely; end actualize