Point-class Cutters
Point class may refer to *Pointclass sets in mathematics *Point-class sealift ship *Point-class cutter The Point-class cutter was a class of 82-foot patrol vessels designed to replace the United States Coast Guard's aging 83-foot wooden hull patrol boat being used at the time. The boats had a mild steel hull and an aluminum superstructure. The C ...

Pointclass
In the mathematical field of descriptive set theory, a pointclass is a collection of Set (mathematics), sets of point (mathematics), points, where a ''point'' is ordinarily understood to be an element of some perfect set, perfect Polish space. In practice, a pointclass is usually characterized by some sort of ''definability property''; for example, the collection of all open sets in some fixed collection of Polish spaces is a pointclass. (An open set may be seen as in some sense definable because it cannot be a purely arbitrary collection of points; for any point in the set, all points sufficiently close to that point must also be in the set.) Pointclasses find application in formulating many important principles and theorems from set theory and real analysis. Strong set-theoretic principles may be stated in terms of the determinacy of various pointclasses, which in turn implies that sets in those pointclasses (or sometimes larger ones) have regularity properties such as Lebesgue m ...
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Point-class Sealift Ship
The Point class is a ship class, class of six roll-on/roll-off sealift ships originally procured under a Private Finance Initiative to be available for use as Auxiliary ship, naval auxiliaries to the United Kingdom, British British Armed Forces, armed forces. Two of the ships have now been released from the contract, leaving four available for service with the military. Background The Point-class sealift ships are the result of the 1998 Strategic Defence Review (1998), Strategic Defence Review and are designed by Houlder Ltd for the strategic transport of military cargoes and vehicles in times of need. The UK Ministry of Defence (United Kingdom), Ministry of Defence (MoD) has purchased a 22-year charter from Foreland Shipping (previously named AWSR Shipping), who own, operate and crew the ships, utilising them as cargo ship, merchant vessels when they are not required for military service. The small British crews are provided by Foreland Shipping and are required to be sponsore ...
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