Restricted and Unrestricted Modus Ponens

Download Edit this record How to cite View on PhilPapers
In a typical modus ponens the reasoner will (a) assert that a premise materially implies a conclusion in a given world; (b) assert this premise and (c) infer the conclusion. But this restricted modus ponens has little in common with the unrestricted textbook modus ponens, since the latter claims that there are no possible worlds where: (a’) a premise materially implies a conclusion, (b’) that premise is true and (c’) the conclusion is false. It is clear that this textbook modus ponens cannot be a real argumentative form since the same inference cannot be repeated across all possible worlds by one reasoner. What is wrong?
PhilPapers/Archive ID
Upload history
First archival date: 2020-09-02
Latest version: 8 (2021-01-18)
View other versions
Added to PP index

Total views
30 ( #53,912 of 57,000 )

Recent downloads (6 months)
24 ( #30,553 of 57,000 )

How can I increase my downloads?

Downloads since first upload
This graph includes both downloads from PhilArchive and clicks on external links on PhilPapers.