What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If it is cold, then Charles is making tea. For all x_8, if x_8 makes tea, then x_8 is cooking. Charles is cooking or it is cold. For all x_8, if x_8 cooks, then x_8 is making tea.
For all x_8, x_8 will make tea if and only if x_8 will cook. For all x_8, x_8 will cook if and only if x_8 will make tea.