- Debay’s Slough Wildlife Area Unit (wdfw.wa.gov)
The Johnson/DeBay’s Slough Unit is comprised of agricultural fields, riparian forest, and freshwater wetlands. The unit was purchased in the late 1990’s to provide an undisturbed Game Reserve for trumpeter swans as well as to provide limited waterfowl hunting area. Public access in the Game Reserve area is limited to the parking/viewing area at the end of DeBay Island Road and the mowed grass field to the east of the Game Reserve parking area. Waterfowl hunting is allowed in the portion of DeBay’s Slough to the north of DeBay Island Road and the adjacent field to the east of DeBay’s Slough.
- Quantifier (logic) (Wikipedia)
In logic, a quantifier is an operator that specifies how many individuals in the domain of discourse satisfy an open formula. For instance, the universal quantifier ∀ in the first order formula ∀xP(x) expresses that everything in the domain satisfies the property denoted by P. On the other hand, the existential quantifier ∃ in the formula ∃xP(x) expresses that there exists something in the domain which satisfies that property. A formula where a quantifier takes widest scope is called a quantified formula. A quantified formula must contain a bound variable and a subformula specifying a property of the referent of that variable.