This question is in reference to Atlassian Documentation: Space Permissions Overview
Space permission are additive for permissions granted to a user via her group memberships. How about space permissions granted on membership of a group and on the user-level?
We have a space HI and a group C25 that has view permissions on that space.
The user smiru is member of the group C25, so has view permissions for space HI.
Within the space permission setting the user smiru also has create permissions granted to her as an individual user.
Nevertheless, user smiru can't edit pages within the space HI.