reductio
noun
re·duc·tio
rə̇ˈdəkshēˌō,
rēˈ-;
rāˈdu̇ktēˌō
plural reductiones
⸗ˌ⸗⸗ˈōˌnēz;
⸗ˌ⸗⸗ˈōˌnās
: an act or process of reducing —used as the first term in phrases relating to disproof of a proposition by arguing it to an obviously false conclusion
reductio ad impossible
compare ad absurdum 
Word History
Etymology
Late Latin
- pull on
- pull one's hair out
- pull one's leg
- pull one's own weight
- pull one's weight
- pull oneself together
- pull out
- pull out all the stops
- pull pin
- pull punches
- pull quote
- pull rank
- pull round
- pull socket
- pull someone's chain
- pull someone's leg
- pull stakes
- pull station
- pull strap
- pull strings
- pull switch
- pull tab
- pull the chain
- pull the plug
- pull the rug from under