Magazine / Logic
Chain Reasoning and Hypothetical Syllogism
Apr 1, 2026 · Oiyo
Master chain reasoning in logic — linking A→B→C into A→C, contrapositive chains, and multi-step inference problems used in public exams.
Logic
Technical insights and deep-dives in Logic.
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Magazine / Logic
Compound Conditionals: AND/OR in Premises and Conclusions
Apr 1, 2026 · Oiyo
Master compound conditionals with AND/OR combinations in antecedents and consequents — truth tables, negation laws, and practice problems.
Magazine / Logic
Proof by Contradiction and Mathematical Induction
Apr 1, 2026 · Oiyo
Master proof by contradiction and mathematical induction — with classic proofs, liar paradox puzzles, and exam strategies for logical reasoning tests.
Magazine / Logic
Necessary and Sufficient Conditions Explained Clearly
Apr 1, 2026 · Oiyo
Understand necessary vs sufficient conditions once and for all — with plain-language definitions, real-world examples, and exam problem walkthroughs.
Magazine / Logic
Quantified Statements: All, Some, and None in Logic
Apr 1, 2026 · Oiyo
Master universal and existential quantifiers in formal logic — translating all/some/no statements, negations, and inference rules with exam practice.
Magazine / Logic
Logical Reasoning Ch5: Completely conquering necessary conditions, sufficient conditions, inverse...
Mar 31, 2026 · Oiyo
Fifth core concept of logical reasoning - A complete guide to the relationship between converse, this, and treatment in the p→q proposition, distinction between necessary and sufficient conditions,...