I would like to know how to refer to the sentance structure that is used in formal contexts, when "through which", "for whom" etc. are typically used. Are these non-defining relative pronouns?
Sometimes they can can be combined:
implicates a world amid and with which it proceeds
And often they make sentences more confusing:
The understandings of action through which doings and sayings are linked in practices encompass the understandings of action against the background of which doings and sayings constitute specific actions.