LINKS

https://en.wikipedia.org/wiki/Logical_connective https://en.wikipedia.org/wiki/Logical_constant https://en.wikipedia.org/wiki/Paul_Graham_(programmer) https://en.wikipedia.org/wiki/Logical_consequence https://en.wikipedia.org/wiki/Obversion https://en.wikipedia.org/wiki/Material_conditional https://en.wikipedia.org/wiki/Conditional_statement

https://www.csm.ornl.gov/~sheldon/ds/