FORMULAS
| ➀ | forall t, u (t <->* u & NF(u) => t ->* u) |
| ➁ | forall t, u (t <->* u & NF(u) => t ->* u) |
| ➂ | forall s, t, u (s -> t & s ->! u => t ->* u) |
| ➃ | forall s, t, u (s -> t & s ->! u => t ->* u) |
| ➄ | forall t (WN(t) => CR(t)) |
| ➅ | forall t (WN(t) => CR(t)) |

| ➀ | forall t, u (t <->* u & NF(u) => t ->* u) |
| ➁ | forall t, u (t <->* u & NF(u) => t ->* u) |
| ➂ | forall s, t, u (s -> t & s ->! u => t ->* u) |
| ➃ | forall s, t, u (s -> t & s ->! u => t ->* u) |
| ➄ | forall t (WN(t) => CR(t)) |
| ➅ | forall t (WN(t) => CR(t)) |