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1 (* Title: HOL/Induct/PropLog.thy |
1 (* Title: HOL/Induct/PropLog.thy |
2 Author: Tobias Nipkow |
2 Author: Tobias Nipkow |
3 Copyright 1994 TU Muenchen & University of Cambridge |
3 Copyright 1994 TU Muenchen & University of Cambridge |
4 *) |
4 *) |
5 |
5 |
6 header {* Meta-theory of propositional logic *} |
6 section {* Meta-theory of propositional logic *} |
7 |
7 |
8 theory PropLog imports Main begin |
8 theory PropLog imports Main begin |
9 |
9 |
10 text {* |
10 text {* |
11 Datatype definition of propositional logic formulae and inductive |
11 Datatype definition of propositional logic formulae and inductive |