What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_11, x_11 is not an electrician or x_11 will write a letter. For all x_11, x_11 will climb a mountain and x_11 is a doctor. For all x_11, x_11 is not an astronaut or x_11 will sleep. For all x_11, if x_11 climbs a mountain, then x_11 is an electrician.
For all x_11, x_11 will climb a mountain. For all x_11, x_11 is a doctor.