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#arXiv #math_LO "Natural Deduction for the Sheffer Stroke and Peirce's Arrow (And Any Other Truth-Functional Conne… https://t.co/q2tPIFasY5
#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