https://padlet.com/cnwilkinson/zfo70pg5ctbf John Venn further developed George Boole's theories in the 1881 work Symbolic Logic, where he highlighted what would become known as Venn diagrams. en-us 2017-10-09 13:34:17 UTC 2019-09-27 11:58:32 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Pizza.png cnwilkinson https://padlet.com/cnwilkinson/zfo70pg5ctbf/wish/195220174 2017-10-09 13:37:05 UTC https://padlet.com/cnwilkinson/zfo70pg5ctbf/wish/195220174 cnwilkinson https://padlet.com/cnwilkinson/zfo70pg5ctbf/wish/195220264 2017-10-09 13:37:14 UTC https://padlet.com/cnwilkinson/zfo70pg5ctbf/wish/195220264 cnwilkinson https://padlet.com/cnwilkinson/zfo70pg5ctbf/wish/195220371 2017-10-09 13:37:24 UTC https://padlet.com/cnwilkinson/zfo70pg5ctbf/wish/195220371