It is morally permissible for extraterrestrials to eat humans on the condition that it is morally permissible for humans to eat animals. but either it is not morally permissible for extraterrestrials to eat humans or human life lacks intrinsic value. human life has intrinsic value. therefore it is not morally permissible for humans to eat animals. (e: it is morally permissible for extraterrestrials to eat humans; h: it is morally permissible for humans to eat animals; v: human life has intrinsic value)

It is not permissible for humans to eat animals.

HE, ~(E v V), V                       ∴~H

H E V                           HE, ~E v ~V, V ∴ ~H

T T T                                   T F F F T F

T T F                                   T F T T F F

T F T                                   F T T F T F

T F F                                   F T T F F F

F T T                                   T F F F T T

F T F                                   T F T T F T

F F T                                   F T T F T T

F F F                                   F T T T F T

But the argument is valid.

we need the diagram to answer this correctly.

manifest functions are the recognized and intended consequences of any social pattern, while latent functions are those unrecognized and unintended consequences. to analyze the manifest functions of any social institution, we have to study its contribution to the continuation of a group, community, or society.