Deduction means making a conclusion or finding a truth. Must indicates certainty about something true. Might/may/could express possible but uncertain situations. Can't indicates something is impossible
Both inductive and deductive reasoning are used in logic and science. Scientists use both methods in the scientific method. Sherlock Holmes is often associated with deductive reasoning
Aristotle emphasized observation and reasoning in scientific inquiry. Scientific method divided into deductive and inductive approaches. Medieval thinkers refined observation and induction methods
Deduction means taking away or subtracting something. It refers to deriving conclusions through reasoning. First known use in 15th century
Derives conclusion from general or universal premises. Truth of conclusion guaranteed from considered facts. Example: planning dentist appointment based on driving time
Uses general principles to draw specific conclusions. Scientific method tests hypotheses and theories using deduction. Begins with first premise followed by second premise and inference. Syllogisms test validity using major and minor premise statements. Valid conclusions require true premises, invalid if premises are false