EN
Assuming the continuum hypothesis, we show that
(i) there is a compact convex subset L of $Σ(ℝ^{ω₁})$, and a probability Radon measure on L which has no separable support;
(ii) there is a Corson compact space K, and a convex weak*-compact set M of Radon probability measures on K which has no $G_{δ}$-points.