Although conceptual analysis, construed decompositionally from the time of Leibniz and Kant, and mediated by the work of Moore, is often viewed as characteristic of analytic philosophy, logical analysis, taken as involving translation into a logical system, is what inaugurated the analytic tradition.
Also, it is up to the author of a logical system as to which definitions he or she chooses to introduce.
Even if one is not committed to the idea of entailment as preservation of semantical values from the premises to the conclusion(s) of an inference (or vice versa), it may still be quite natural to conceive of a logical system as comprising more than only one entailment relation.
If a logical system is published in a book or journal, and there are several copies, then there are as many such systems as there are copies.
Develop a logical system for handling resignation letters.
A set of conventionally overlapped, redundant, and even contradicted empirical observations in brain studies and cognitive psychology may be clarified based on the (alpha )I theory and the system model of AIMB as a logical intelligent system.
This biological circuitry would be more akin to a sequential logical system, a prerequisite for complex computation, than a combinational one such as simple Boolean logic.
Conversely, one says that L is characterized by V. Thus, if a valuation system is said to determine a logic, the valuation system by itself is, properly speaking, not a logic, but only serves as a semantic basis for some logical system.
One problem with the semantics without the ternary relation is that it is difficult to use it to characterize as wide a range of logical systems as can done with the ternary relation.
