We present constraints on extensions to the standard cosmological model of a spatially flat Universe governed by general relativity, constant (?), and cold dark matter (CDM) varying spatial curvature ? K , sum neutrino masses ? m ? energy equation state parameter w Hu-Sawicki f ( R ) gravity 0 parameter. With combined 3 × 2 pt measurements cosmic shear from Kilo-Degree Survey (KiDS-1000), galax...