Revision #22 → #1002 · back to history
addedSubgroup of a free group is free97968b9315b4
addedHomotopy groupscce0c8620d67
addedFundamental group7e25800c8f94
addedHomology8c2b5241f57b
addedCohomologyd3224126b364
addedManifold4ab0adb8b364
addedExamples of manifolds98403b6f9693
addedKnot theory5c49ebc25b14
addedKnot (embedding of a circle)644451c8c767
addedEquivalence of knots6d120623edbd
addedSimplicial complexff376abde04c
addedCW complex7c5538013b52
addedFinite presentation of fundamental group of a simplicial complexaba53508eea1
addedClassification of finitely generated abelian groups5e07b68a1574
addedFunctoriality of algebraic topology constructions27e838645849
addedDe Rham theoremb45b93812151
addedEilenberg–Steenrod axiomatizationf7eaba58146c
addedFundamental theorem of algebra via fundamental group250100ee551a
addedBrouwer fixed point theorem63d809e52bac
addedBetti number and Euler–Poincaré characteristic34ed718c5cb2
addedDe Rham cohomology and differential equations2fb1c3d3038c
addedOrientability via top integral homology2b0ba7185bb6
addedHairy ball theoremd60a8c4cd854
addedInvariance of domain and dimensionf1de52fbb7eb
addedBorsuk–Ulam theoremc871fbb19b78
addedJordan curve theoremf7e79a704fd2
addedNielsen–Schreier theoremc39cd3585e23