Galaxy mass and luminosity function in OBELISK. Top: galaxy stellar mass function in our high-resolution region at z = 6 (thick black line) compared to the observational determination of Duncan et al. (2014, dashed purple line), Song et al. (2016, dash-dotted blue line), Davidzon et al. (2017, red dotted line) and Bhatawdekar et al. (2019, green area). Bottom: corresponding intrinsic UV luminosity function (thick black line) and including an estimate for the expected dust attenuation based on the dust present in the simulation (red area). We compare our results to the UV luminosity functions for field galaxies found by Bowler et al. (2015), Bouwens et al. (2017), Livermore et al. (2017), Atek et al. (2018), Ishigaki et al. (2018) and the BDF field from Castellano et al. (2016). Details of the legend are given in the text.