Ideas of Robert Hanna, by Theme

[American, fl. 2006, Professor at the University of Colorado, Boulder.]

green numbers give full details    |    back to list of philosophers    |     expand these ideas
1. Philosophy / F. Analytic Philosophy / 6. Logical Analysis
11051 Frege's logical approach dominates the analytical tradition
1. Philosophy / G. Scientific Philosophy / 3. Scientism
11054 Scientism says most knowledge comes from the exact sciences
2. Reason / F. Fallacies / 1. Fallacy
11088 We can list at least fourteen informal fallacies
11071 'Affirming the consequent' fallacy: φ→ψ, ψ, so φ
11070 'Denying the antecedent' fallacy: φ→ψ, ¬φ, so ¬ψ
2. Reason / F. Fallacies / 4. Circularity
11059 Circular arguments are formally valid, though informally inadmissible
2. Reason / F. Fallacies / 5. Fallacy of Composition
11089 Formally, composition and division fallacies occur in mereology
5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
11058 Logic is explanatorily and ontologically dependent on rational animals
11072 Logic is personal and variable, but it has a universal core
5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
11061 Intensional consequence is based on the content of the concepts
6. Mathematics / C. Sources of Mathematics / 6. Logicism / d. Logicism critique
11063 Logicism struggles because there is no decent theory of analyticity
7. Existence / C. Structure of Existence / 5. Supervenience / b. Types of supervenience
11055 Supervenience can add covariation, upward dependence, and nomological connection
10. Modality / A. Necessity / 2. Nature of Necessity
11083 A sentence is necessary if it is true in a set of worlds, and nonfalse in the other worlds
10. Modality / A. Necessity / 5. Metaphysical Necessity
11086 Metaphysical necessity can be 'weak' (same as logical) and 'strong' (based on essences)
10. Modality / A. Necessity / 6. Logical Necessity
11084 Logical necessity is truth in all logically possible worlds, because of laws and concepts
10. Modality / A. Necessity / 7. Natural Necessity
11085 Nomological necessity is truth in all logically possible worlds with our laws
12. Knowledge Sources / E. Direct Knowledge / 2. Intuition
11077 Intuition includes apriority, clarity, modality, authority, fallibility and no inferences
11080 Intuition is more like memory, imagination or understanding, than like perception
11078 Intuition is only outside the 'space of reasons' if all reasons are inferential
14. Science / D. Explanation / 2. Types of Explanation / j. Explanations by reduction
11053 Explanatory reduction is stronger than ontological reduction
15. Nature of Minds / C. Capacities of Minds / 2. Imagination
11081 Imagination grasps abstracta, generates images, and has its own correctness conditions
18. Thought / A. Modes of Thought / 1. Thought
11082 Should we take the 'depictivist' or the 'descriptivist/propositionalist' view of mental imagery?
18. Thought / A. Modes of Thought / 5. Rationality / a. Rationality
11067 Rational animals have a normative concept of necessity
11047 Hegelian holistic rationality is the capacity to seek coherence
11068 One tradition says talking is the essence of rationality; the other says the essence is logic
11046 Kantian principled rationality is recognition of a priori universal truths
11048 Humean Instrumental rationality is the capacity to seek contingent truths
18. Thought / B. Mechanics of Thought / 1. Psychology
11045 Most psychologists are now cognitivists