برهان عکس نقیض (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "برهان عکس نقیض" in Persian language version.

refsWebsite

Global rank Persian rank

low place

low place

5,534^th place

7,751^st place

csufresno.edu

zimmer.csufresno.edu

Cusick, Larry. "Proofs by Contrapositive". zimmer.csufresno.edu. Retrieved 2019-10-26.

ornl.gov

csm.ornl.gov

Sheldon, Frederick. "Conditional Statement Forms". www.csm.ornl.gov. Retrieved 2019-10-26.