#arXiv #math_LO "Natural Deduction for the Sheffer Stroke and Peirce's Arrow (And Any Other Truth-Functional Conne… https://t.co/q2tPIFasY5
RT @LogicalAnalysis: .@RrrichardZach on Natural Deduction for the Scheffer Stroke and Peirce's Arrow (And Other Truth-Functors) https://t.c…
.@RrrichardZach on Natural Deduction for the Scheffer Stroke and Peirce's Arrow (And Other Truth-Functors) https://t.co/XFUqPrhbGO #Logic
Richard Zach : Natural Deduction for the Sheffer Stroke and Peirce's Arrow (And Any Other Truth-Functional Conn... http://t.co/pgtJLgr92P
Esto parece divertido MT @logicians "Natural Deduction for the Sheffer Stroke and Peirce's Arrow…", R. Zach #logic http://t.co/wrmbju2rci
"Natural Deduction for the Sheffer Stroke and Peirce's Arrow...", R. Zach. #math #logic http://t.co/SH4N6RVXTC
Natural Deduction for the Sheffer Stroke and Peirce's Arrow (And Any Other Truth-Functional Connective). http://t.co/yO3WPBU7V3
"Natural Deduction for the Sheffer Stroke and Peirce's Arrow...", R. Zach. #math #logic http://t.co/SH4N6RVXTC
Esto parece divertido MT @logicians "Natural Deduction for the Sheffer Stroke and Peirce's Arrow…", R. Zach #logic http://t.co/wrmbju2rci
"Natural Deduction for the Sheffer Stroke and Peirce's Arrow...", R. Zach. #math #logic http://t.co/SH4N6RVXTC
"Natural Deduction for the Sheffer Stroke and Peirce's Arrow...", R. Zach. #math #logic http://t.co/SH4N6RVXTC
Richard Zach : Natural Deduction for the Sheffer Stroke and Peirce's Arrow (And Any Other Truth-Functional Conn... http://t.co/pgtJLgr92P