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The solvable version of the problem. Here, cups A and C are upside down, and cup B is upright. The three cups problem, also known as the three cup challenge and other variants, is a mathematical puzzle that, in its most common form, cannot be solved. In the beginning position of the problem, one cup is upside-down and the other two are right ...
definition: is defined as metalanguage:= means "from now on, is defined to be another name for ." This is a statement in the metalanguage, not the object language. The notation may occasionally be seen in physics, meaning the same as :=.
3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1. Means "less than or equal to". That is, whatever A and B are, A ≤ B is equivalent to A < B or A = B. 2. Between two groups, may mean that the first one is a subgroup of the second one. ≥ 1. Means "greater than or equal to".
Square brackets are used with phonetic notation, whether broad or narrow [17] – that is, for actual pronunciation, possibly including details of the pronunciation that may not be used for distinguishing words in the language being transcribed, but which the author nonetheless wishes to document. Such phonetic notation is the primary function ...
180° rotational ambigram saying "Upside Down". [40] "Half-turn" ambigrams or point reflection ambigrams, commonly called "upside-down words", are 180° rotational symmetrical calligraphies. [7] They can be read right side up or upside down, or both. Rotation ambigrams are the most common type of ambigrams for good reason.
The voiced palatal lateral approximant is a type of consonantal sound used in some spoken languages.The symbol in the International Phonetic Alphabet that represents this sound is ʎ , a rotated lowercase letter y , and the equivalent X-SAMPA symbol is L.
McDonald’s has decided to cosplay as its animated alter ego. Starting Feb. 26, the fast-food chain launched a manga-inspired makeover, embracing the upside-down golden arches featured in some of ...
Four glasses or tumblers are placed on the corners of a square Lazy Susan.Some of the glasses are upright (up) and some upside-down (down). A blindfolded person is seated next to the Lazy Susan and is required to re-arrange the glasses so that they are all up or all down, either arrangement being acceptable, which will be signalled by the ringing of a bell.