Let n be given.
Assume HnO: n ω.
We will prove metrizable (Romega_tilde n) (subspace_topology R_omega_space R_omega_product_topology (Romega_tilde n)).
An exact proof term for the current goal is (subspace_of_metrizable_is_metrizable R_omega_space R_omega_product_topology (Romega_tilde n) Romega_product_topology_metrizable (Romega_tilde_sub_Romega n)).