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Cantor's diagonal argument (among various similar names [note 1]) is a mathematical proof that there are infinite sets which cannot be put into one-to-one correspondence with the infinite set of natural numbers – informally, that there are sets which in some sense contain more elements than there are positive integers.
Ketupat pulut is also called ketupat daun palas in Malaysia, primarily found in northern Malay Peninsula and among the Malay community of southern Thailand. Usually ketupat pouch are made from janur or young palm leaves fronds. However, in Kalimantan, nipah leaves might be used and woven into ketupat as well. [17]
Any non-self-crossing quadrilateral with exactly one axis of symmetry must be either an isosceles trapezoid or a kite. [5] However, if crossings are allowed, the set of symmetric quadrilaterals must be expanded to include also the crossed isosceles trapezoids, crossed quadrilaterals in which the crossed sides are of equal length and the other sides are parallel, and the antiparallelograms ...
One way to visualize a broken diagonal is to imagine a "ghost image" of the panmagic square adjacent to the original: The set of numbers {3, 12, 14, 5} of a broken diagonal, wrapped around the original square, can be seen starting with the first square of the ghost image and moving down to the left.
Vectors involved in the parallelogram law. In a normed space, the statement of the parallelogram law is an equation relating norms: ‖ ‖ + ‖ ‖ = ‖ + ‖ + ‖ ‖,.. The parallelogram law is equivalent to the seemingly weaker statement: ‖ ‖ + ‖ ‖ ‖ + ‖ + ‖ ‖, because the reverse inequality can be obtained from it by substituting (+) for , and () for , and then simplifying.
Because the group operation of an abelian group is commutative, a group is abelian if and only if its Cayley table's values are symmetric along its diagonal axis. The group {1, −1} above and the cyclic group of order 3 under ordinary multiplication are both examples of abelian groups, and inspection of the symmetry of their Cayley tables ...
Tipat or ketupat is a rice cake which often serves as a replacement for rice. The peanut sauce can be either mild, or hot and spicy with the addition of chili pepper. Usually bawang goreng (fried shallots) are sprinkled upon the dish, as well as kecap manis (sweet soy sauce). It is one of the few Balinese vegetarian dishes.
The terms "diagonal lemma" or "fixed point" do not appear in Kurt Gödel's 1931 article or in Alfred Tarski's 1936 article. Rudolf Carnap (1934) was the first to prove the general self-referential lemma , [ 6 ] which says that for any formula F in a theory T satisfying certain conditions, there exists a formula ψ such that ψ ↔ F (°#( ψ ...