User:IssaRice/Strength of a mathematical statement
External links
- https://gowers.wordpress.com/2008/12/28/how-can-one-equivalent-statement-be-stronger-than-another/ (haven't read this yet)
- https://gowers.wordpress.com/2011/09/26/basic-logic-connectives-not/ (search strong)
- https://gowers.wordpress.com/2011/10/02/basic-logic-relationships-between-statements-negation/ (search "strong")