Try doing some basic maths questions in the Lean Theorem Prover. Functions, real numbers, equivalence relations and groups. Click on README.md and then on "Open in CoCalc with one click".
Maths_Challenges / _target / deps / mathlib / src / category_theory / limits / shapes / default.lean
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import category_theory.limits.shapes.terminal import category_theory.limits.shapes.binary_products import category_theory.limits.shapes.finite_products import category_theory.limits.shapes.products import category_theory.limits.shapes.equalizers import category_theory.limits.shapes.pullbacks import category_theory.limits.shapes.finite_limits