First consider classically valid (that is, necessarily truth-preserving) arguments which don't involve conditionals.
Any necessarily truth-preserving argument satisfies PPP.
In this context, the phrase "validity claim," as a translation of the German term Geltungsanspruch, does not have the narrow logical sense (truth-preserving argument forms), but rather connotes a richer social idea that a claim (statement) merits the addressee's acceptance because it is justified or true in some sense, which can vary according to the sphere of validity and dialogical context.
"It's not an argument for preserving everything - that's not a practical proposition - but it's an argument for people to realise they have huge cultural capital invested in them".
That is a rare good argument for preserving the monarchy.
Since when has intrusiveness ever been a valid argument against preserving life?
The report is a compelling argument for preserving -- and broadening where necessary -- the reach of environmental law.
McCain aside, the most common last-ditch argument for preserving "don't ask" heard last week, largely from Southern senators, is to protect "troop morale and cohesion".
Mr. Romney's book, "No Apology," published in March 2010, was a forceful conservative manifesto: an argument for preserving America's military supremacy, free-market economic edge and energy independence.
If the argument for preserving a balance between security and privacy compels a stronger wiretap power, it must also means a broader statutory warrant requirement, one that covers most of what we do on the Web and covers most records.
The argument for preserving the public-school monopoly carried weight in the minority community when inner-city schools were frayed at the edges but still meeting the needs of their students.
