Use the method of writing each premise in symbols in order to write a conclusion that yields a valid argument.
-All fish can dream. Any dead animal is unable to dream. All live animals have a heartbeat.
A)Any dead fish can dream.
B)All live animals can dream.
C)All fish have a heartbeat.
D)Any dead animal has no heartbeat.

Question

Quizplus · Accepted Answer

The premises given are: All fish can dream (let's symbolize this as F -> D, where F = fish and D = dream), Any dead animal is unable to dream (~D -> ~A, where ~D = does not dream and ~A = not alive or dead), and All live animals have a heartbeat (A -> H, where A = alive and H = heartbeat). From these premises, we can deduce that since all fish can dream and dreaming is not possible for dead animals (which implies fish must be alive to dream), and all live animals have a heartbeat, then all fish must have a heartbeat. This makes option C the correct conclusion.

Use the Method of Writing Each Premise in Symbols in Order