Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Polysyllogism
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
== Example == An example of a categorical polysyllogism is: :All good students will readily understand polysyllogisms :All students of logic are good students :Therefore, all students of logic will readily understand polysyllogisms :But all people who read this web page are students of logic :Therefore, all people who read this web page will readily understand polysyllogisms This argument has the following structure: :All A is B :All C is A :Therefore: all C is B :All D is C :Therefore, all D is B Note two points: first, the makeup of a polysyllogism need not be limited to two component syllogisms. In fact, it can have any number of component syllogisms. Second, validity depends on all its parts. If any one is not valid then the whole polysyllogism is to be considered invalid.<ref>{{cite book|url=https://www.goodreads.com/book/show/1665759.Traditional_Logic_II|author=Martin Cothran|title=Traditional Logic II|pages=64|year=2017|publisher=[[Memoria Press]]}}</ref> An example for a [[propositional]] polysyllogism is: :It is raining. :If we go out while it is raining we will get wet. :If we get wet, we will get cold. :Therefore, if we go out we will get cold. Examination of the structure of the argument reveals the following sequence of constituent (pro)syllogisms: :It is raining. :If we go out while it is raining we will get wet. :Therefore, if we go out we will get wet. :If we go out we will get wet. :If we get wet, we will get cold. :Therefore, if we go out we will get cold.
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)