GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
12[1XIndex[101X34[2XAddToMatElm[102X, for homalg local matrices 4.3-105[2XAssociatedGlobalRing[102X, for homalg local matrices 4.3-36for homalg local ring elements 4.3-27for homalg local rings 4.3-18[2XBasisOfRowModule[102X, for local rings A.1-19[2XCancel[102X, for pairs of ring elements 4.3-1310[2XDecideZeroRows[102X, for local rings A.2-111for local rings with Mora's algorithm A.1-212[2XDenominator[102X, for homalg local matrices 4.3-713for homalg local ring elements 4.3-614[2XGeneratorsOfMaximalLeftIdeal[102X 4.2-115[2XGeneratorsOfMaximalRightIdeal[102X 4.2-216[2XHomalgLocalMatrix[102X, constructor for local matrices using a given numerator and one as denominator 4.3-1817constructor for local matrices using numerator and denominator 4.3-1818[2XHomalgLocalRingElement[102X, constructor for local ring elements using a given numerator and one as denominator 4.3-1719constructor for local ring elements using numerator and denominator 4.3-1720[2XIsHomalgLocalMatrixRep[102X 4.1-321[2XIsHomalgLocalRingElementRep[102X 4.1-222[2XIsHomalgLocalRingRep[102X 4.1-123[2XLocalizeAt[102X, for a commutative ring and a maximal ideal 4.3-1424[2XLocalizeAtZero[102X, for a free polynomial ring 4.3-1525[2XLocalizePolynomialRingAtZeroWithMora[102X, constructor for homalg localized rings using Mora's algorithm 4.3-1626[5XLocalizeRingForHomalg[105X .-327[2XMatElm[102X, for homalg local matrices 4.3-1228[2XMatElmAsString[102X, for homalg local matrices 4.3-1129[2XName[102X, for homalg local ring elements 4.3-830[2XNumerator[102X, for homalg local matrices 4.3-531for homalg local ring elements 4.3-432[2XSetMatElm[102X, for homalg local matrices 4.3-933[2XSyzygiesGeneratorsOfRows[102X, for local rings A.1-3343536-------------------------------------------------------373839