Karnataka II PUC Logic (KSEAB) study guide
Karnataka II PUC Logic (KSEAB) · Work through your exam, one topic at a time.
Logic is one of the optional subjects in the Karnataka Pre-University (II PUC) curriculum, examined in writing by the Karnataka School Examination and Assessment Board (KSEAB). Students usually take it alongside arts, commerce or science combinations, and the marks count toward the II PUC result used for university admission and for eligibility in competitive examinations. The Karnataka II PUC Logic (KSEAB) study guide has 9 sections and about 2,600 words.
01Nature and Scope of Logic
This unit tests the definition of logic, the science/art distinction, the relation of logic to psychology and ethics, and the deductive–inductive divide. Expect short-answer items asking you to define logic, justify why logic is called a normative science, and classify given arguments.
321 words, about 2 min02Terms
The term as the unit of meaning, kinds of terms, connotation and denotation, and the distribution of terms - the skill on which the whole syllogism unit depends. Singular (names one thing: "Karnataka"), general ("river"), collective ("team" - predicable of the group, not of each member).
272 words, about 1 min03Propositions and Classification
The difference between a sentence and a proposition, the quality/quantity classification, and the naming and distribution pattern of the four categorical forms A, E, I and O. This unit supplies the vocabulary used by every later unit.
298 words, about 1 min04Categorical Propositions and Immediate Inference
Immediate inference draws a conclusion from a single premise. The exam tests the square of opposition, conversion, obversion and contraposition, and the exact conditions under which each is valid.
284 words, about 1 min05Categorical Syllogism and Fallacies
This is the highest-scoring unit: identify the three terms and the figure, test validity by rules or Venn diagram, and name the fallacy when a syllogism fails. Three terms - major (predicate of the conclusion), minor (subject of the conclusion), middle (in both premises, never in the conclusion) - and three propositions: major premise, minor premise, conclusion.
298 words, about 1 min06Symbolic Logic: Propositional Calculus
Translating ordinary arguments into symbols and testing them by truth-functional analysis. You must use the standard symbols, build well-formed formulas, and classify statement forms as tautology, contradiction or contingent.
298 words, about 1 min07Methods of Proof and Truth Tables
Two decision procedures: truth tables (full, abbreviated and indirect) for validity, and formal proofs of validity using rules of inference and rules of replacement. A full truth table has 2ⁿ rows for n variables.
264 words, about 1 min08Inductive Reasoning and Scientific Method
Generalisation, analogy, causal reasoning through Mill's methods, and the stages of scientific method. Answers must name the method used and state why the conclusion is only probable.
271 words, about 1 min09Logic and Language
The functions of language, the use–mention distinction, ambiguity, vagueness and definition - the tools for explaining why an argument's wording, rather than its logic, breaks down. Informative : conveys truth claims.
294 words, about 1 min