A non sequitur (Latin for "it does not follow") was a line of reasoning said to proceed from another, but which in reality did not make sense.
- a) That the crew of the USS Enterprise could not board Nomad's ship.
- b) That if Nomad cared to leave their ship, the Enterprise would provide needed life support to accomodate them.
- c) That a supposedly inferior "biological unit" created Nomad. (TOS: "The Changeling")