TY  - RPRT
TI  - Effective Equality and Effective Implication in Formal Logic.
AU  - E V Huntington
PY  - 1935
DO  - 10.1073/pnas.21.5.266
UR  - https://pubmed.ncbi.nlm.nih.gov/16577669/
ID  - 16577669
ER  -