** East Islet, 25, 000 m² land area ;

** April 25 ( Eastern Orthodox liturgics )

** 25 color palette out of 256 colors ( 16 hues * 16 luma ), different graphics modes restricted the number of usable colors and the number of colors per sprite

** France — voltage change 3 kV DC – 25 kV AC

** Luxembourg — no voltage change at the border ( the line Arlon-Luxembourg is at 3 kV DC and the line Gouvy-Luxembourg is at 25 kV AC )

** Channel Tunnel — voltage remains at 25 kV AC.

** UK — voltage remains at 25 kV AC — voltage change 750 V DC third rail ( The Southern Region ).

** bulk carrier 25

** passenger / cargo 25

** The Politburo, presently consisting of 25 full members ( including the members of the Politburo Standing Committee ); see current members of the Politburo for a complete list.

** December 25 ( Eastern Orthodox liturgics )

** Nazarov was Dictator of the Don Republic ( which before, since its founding on 2 December 1917 at Novocherkassk, had been governed by a Triumvirate including the last pre-Soviet Ataman, Aleksei Maksimovich Kaledin ) from 11 February 1918 till 25 February 1918 when Bolshevik troops ended their existence

** Series one: an introductory special on boxing day 1967, followed by 13 regular episodes of 30 minutes broadcast between 26 December 1967 to 28 March 1968, Thursdays at 17: 25.

** February 25 ( Eastern Orthodox liturgics )

** industry 25 %

** Finance: 25. 0 %

** EUFOR, from 2004 ( Bosnia and Herzegovina ) – 260 out of 2, 150 soldiers from 25 countries

** i386EX: 16 MHz @ 2. 7 ~ 3. 3 volt or 20 MHz @ 3. 0 ~ 3. 6 volt or 25 MHz @ 4. 5 ~ 5. 5 volt

** i386EXTB: 20 MHz @ 2. 7 ~ 3. 6 volt or 25 MHz @ 3. 0 ~ 3. 6 volt

** i386EXTC: 25 MHz @ 4. 5 ~ 5. 5 volt or 33 MHz @ 4. 5 ~ 5. 5 volt

** June 25 ( Eastern Orthodox liturgics )

** July 25 ( Eastern Orthodox liturgics )

** Channel 25

** May 25 ( Eastern Orthodox liturgics )

** March 25 ( Eastern Orthodox liturgics )

** Eunectes murinus, the green anaconda, the largest species, is found east of the Andes in Colombia, Venezuela, the Guianas, Ecuador, Peru, Bolivia, Brazil and on the island of Trinidad.

** Eunectes notaeus, the yellow anaconda, a smaller species, is found in eastern Bolivia, southern Brazil, Paraguay and northeastern Argentina.

** Eunectes deschauenseei, the dark-spotted anaconda, is a rare species found in northeastern Brazil and coastal French Guiana.

** Eunectes beniensis, the Bolivian anaconda, the most recently defined species, is found in the Departments of Beni and Pando in Bolivia.

** Well-ordering theorem: Every set can be well-ordered.

** Tarski's theorem: For every infinite set A, there is a bijective map between the sets A and A × A.

** Trichotomy: If two sets are given, then either they have the same cardinality, or one has a smaller cardinality than the other.

** The Cartesian product of any family of nonempty sets is nonempty.

** König's theorem: Colloquially, the sum of a sequence of cardinals is strictly less than the product of a sequence of larger cardinals.

** Every surjective function has a right inverse.

** Zorn's lemma: Every non-empty partially ordered set in which every chain ( i. e. totally ordered subset ) has an upper bound contains at least one maximal element.

** Hausdorff maximal principle: In any partially ordered set, every totally ordered subset is contained in a maximal totally ordered subset.

** Tukey's lemma: Every non-empty collection of finite character has a maximal element with respect to inclusion.

** Antichain principle: Every partially ordered set has a maximal antichain.

** Every vector space has a basis.

** Every unital ring other than the trivial ring contains a maximal ideal.

** For every non-empty set S there is a binary operation defined on S that makes it a group.

** The closed unit ball of the dual of a normed vector space over the reals has an extreme point.

** Tychonoff's theorem stating that every product of compact topological spaces is compact.

** In the product topology, the closure of a product of subsets is equal to the product of the closures.

** If S is a set of sentences of first-order logic and B is a consistent subset of S, then B is included in a set that is maximal among consistent subsets of S. The special case where S is the set of all first-order sentences in a given signature is weaker, equivalent to the Boolean prime ideal theorem ; see the section " Weaker forms " below.

** Any union of countably many countable sets is itself countable.