Introductory material to logic
Someone needed this, so I made a quick collection. Introductory and more philosophical http://www.sfu.ca/~swartz/pw/text/pw_all.pdf Introductory not so philosophical/more formal https://emilkirkegaard.dk/en/wp-content/uploads/0415400678.Routledge.Logic_.An_.Introduction.Dec_.2005.pdf https://emilkirkegaard.dk/en/wp-content/uploads/0262511266.The_.MIT_.Press_.Logic_.Primer.-.2nd.Edition.Feb_.2001.pdf https://emilkirkegaard.dk/en/wp-content/uploads/A-Concise-Introduction-To-Logic-Hurley-7th-ed.pdf More advanced and very formal…