Some questions for Demosthenes, Against Aristogiton 1.

[ἑκηβόλος]

● Why is this ὅσῳ …, τοσούτῳ … sentence following the structure of conditional?

@D. 25 12

ὅσῳ γὰρ ἂν μᾶλλον ἡμῶν δειξάντων τὴν τούτου πονηρίαν μηδὲν ὑμεῖς φροντίσητε, τοσούτῳ μείζων ἡ καθ᾽ ὑμῶν αἰσχύνη γενήσεται.

And on the οσῳ … question, see the pinned Conditionals thread, esp. “this system applies not only to if-clauses but also to when-clauses (e.g. ὅτε), relative clauses (e.g. ὅ), and in fact to all subordinate clauses.”
οσῳ αν + subj. is a standard indefinite clause, syntactically identical to εαν.

This thread picks up from http://discourse.textkit.com/t/primary-tenses/14115/1

Here’s a way—a good way, I think—to get to grips with conditional sentences.

There’s conditional clauses, i.e. if-clauses, and there’s main clauses. A main clause is not affected at all by whether or not there’s an if-clause with it.
…
ἐάν + subj.:
ἐὰν εἴπω = If I say (i.e. in the event that I say) (Usually followed by future main clause)
(ἐάν = εἰ + ἄν, i.e. an indefinite clause)
…
That’s about it. Note that this system applies not only to if-clauses but also to when-clauses (e.g. ὅτε), relative clauses (e.g. ὅ), and in fact to all subordinate clauses.

Here, then Demosthenes’s main clause is, “μείζων ἡ καθ᾽ ὑμῶν αἰσχύνη γενήσεται.” The subordinate clause is, “ὅσῳ … ἂν … μηδὲν ὑμεῖς φροντίσητε”, with the genitive absolute “μᾶλλον ἡμῶν δειξάντων τὴν τούτου πονηρίαν” inserted there too.

Is the future formal in this construction, or referring forward to what he is about to say?