| 1 | 14. s: x,y:Alph*//(x LangOf(Auto)-induced Equiv y) 15. a: Alph a.s = a.s |
| 2 | nil = nil x,y:Alph*//(x LangOf(Auto)-induced Equiv y) |
| 3 | 14. l: x,y:Alph*//(x LangOf(Auto)-induced Equiv y) Auto(l) = A(l) |
| 4 | x,y:Alph*//(x LangOf(Auto)-induced Equiv y) = x,y:Alph*//(x LangOf(Auto)-induced Equiv y) |