Revision history for entry Prior, A. N. (1958). "Peirce's axioms for propositional calculus" [PRIPAF] |
| Time | Type | Notes |
| 2012-01-08T19:42:16 | update | |
| 2010-12-26T07:39:45 | update |
Revision history for entry Prior, A. N. (1958). "Peirce's axioms for propositional calculus" [PRIPAF] |
| Time | Type | Notes |
| 2012-01-08T19:42:16 | update | |
| 2010-12-26T07:39:45 | update |