Husserlian Logic
I. Pure Logic
A. object: formal conditions of rationality underlying
justified true belief
B. conditions:
1. to rule out nonsense
(Unsinn), individual judgments must be both well-formed and significant
(= investigation of pure forms of possible judments)
a. formal categories of meaning: (e.g, proposition, concept, variable,
etc.)
b. formal categories of objects (="formal ontology") (e.g, object, state
of affairs, aggregate, etc)
2. to rule out absurdity
(Widersinn), each judgment must be grounded by adherence to formal
laws of evidence, verification, proof
a. meaning: e.g., law of contradiction
b. objects: e.g., law relating part/whole
3. to ensure systematic
rationality, a complete, consistent and axiomatic theory is telos
a. meaning: formal properties of theories (consistency, etc.)
b. objects: manifold field of knowledge
II. Philosophical Logic
A. object: subjective conditions and material aspects
of rational thought
B. areas:
1. material content of beliefs
(perception, intuition, experience... as sources)
2. evidence (justification
of beliefs)
a. transitive
b. reflexive (absolute grounding self-evidence)