Euclidiana vs Predicate Logic Foundations

Euclidiana is the focused way to drill LSAT logical reasoning — now with a Quant Gym of quantitative reasoning practice. Built by a Psychologist and test prep specialist for serious applicants who want clean, distraction-free practice that actually moves their score. WHAT'S INSIDE • 326 original practice questions: LSAT-style logical reasoning across timed forms, plus the new Quant Gym • Start with a 7-day free trial — $0 today — to unlock every form, explanation, and drill • Every form unlocks with a single subscription • Five reasoning categories: Necessary, Sufficient, Biconditional, Mixed, and Causal (correlation-vs-causation and post-hoc fallacies) • Every answer comes with a step-by-step explanation • Color-coded stimulus highlighting shows you exactly which words trigger each logical move • Built-in Venn and causal-chain diagrams visualize each relationship • Formal logic notation (P → Q, contrapositive, etc.) shown alongside plain English • Free Logic Reference: a built-in study section covering necessary/sufficient conditions, formal notation, conditional chaining, and common fallacies • Test Mode: a true timed exam simulation with no mid-question feedback and a full answer review at the end NEW: QUANT GYM • 62 quantitative reasoning questions across four new forms: the Quant Sampler plus Quant Gym I–III, ramping Easy → Hard • Five areas: Arithmetic, Algebra, Geometry, Data Analysis, and Quantitative Comparison • The same step-by-step explanations as the logic forms — learn the method, not just the answer WHY EUCLIDIANA Most prep apps drown you in features. Euclidiana strips it down to the one thing that raises your score: pattern recognition through deliberate, explained practice. No ads. No streaks. No social feed. Just questions, answers, and the reasoning behind them. DESIGNED FOR REAL STUDY • Works fully offline once downloaded • Clean, eye-friendly dark mode • Resume any form mid-session • See your accuracy by question type to find your weak spots SUBSCRIPTION Euclidiana Pro unlocks every practice form and all explanations. Both plans start with a 7-day free trial: Monthly at $19.99/month or Annual at $99.99/year, auto-renewing. Payment is charged to your Apple Account when the free trial ends, unless you cancel at least 24 hours before it ends. Your subscription auto-renews at the same price unless auto-renew is turned off at least 24 hours before the end of the current period. Cancel anytime in your Apple Account settings — access stays active until the end of the billing period. Privacy Policy: https://euclidiana.com/privacy Terms of Use (EULA): https://euclidiana.com/terms Euclidiana is owned and published by Biolexic Labs. Questions? Djwinarick@gmail.com

Predicate Logic Foundations is an independent study app for learners who want structured practice in formal reasoning, quantifiers, inference, models, and proofs. Built for beginners, students, self-learners, and anyone reviewing predicate logic concepts, the app turns 160 questions into focused daily practice across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. - FSRS spaced-repetition intervals to review at the right time - Weak-point heatmap to spot topics that need attention - Daily challenge for consistent progress - Mock exams for timed review - Explanations for every question - Offline practice with no login required Practice offline, no login required. Your study flow stays simple and private. Independent study app for Predicate Logic Foundations practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.