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2. Addition - Wikipedia

   en.wikipedia.org/wiki/Addition

   A number-line visualization of the algebraic addition 2 + 4 = 6. A "jump" that has a distance of 2 followed by another that is long as 4, is the same as a translation by 6. A number-line visualization of the unary addition 2 + 4 = 6. A translation by 4 is equivalent to four translations by 1.

3. List of sums of reciprocals - Wikipedia

   en.wikipedia.org/wiki/List_of_sums_of_reciprocals

   The harmonic mean of a set of positive integers is the number of numbers times the reciprocal of the sum of their reciprocals. The optic equation requires the sum of the reciprocals of two positive integers a and b to equal the reciprocal of a third positive integer c. All solutions are given by a = mn + m 2, b = mn + n 2, c = mn.

4. Proofs involving the addition of natural numbers - Wikipedia

   en.wikipedia.org/wiki/Proofs_involving_the...

   We prove associativity by first fixing natural numbers a and b and applying induction on the natural number c.. For the base case c = 0, (a + b) + 0 = a + b = a + (b + 0)Each equation follows by definition [A1]; the first with a + b, the second with b.

5. Number - Wikipedia

   en.wikipedia.org/wiki/Number

   For example, 6.849999999999... = 6.85 and 6.850000000000... = 6.85. Finally, if all of the digits in a numeral are 0, the number is 0, and if all of the digits in a numeral are an unending string of 9s, you can drop the nines to the right of the decimal place, and add one to the string of 9s to the left of the decimal place.

6. Dollar slips, stocks flat ahead of neck-and-neck US election

   www.aol.com/news/markets-brace-us-election...

   The dollar fell and stocks struggled on Monday as investors trod carefully ahead of a U.S. presidential election of great consequence for the global economy, with a U.S. Federal Reserve interest ...

7. Stubborn wildfire destroys several structures in Malibu ...

   www.aol.com/stubborn-wildfire-destroys-several...

   The fire, which started on Monday night, has destroyed at least seven structures and damaged eight others, the city of Malibu said in a statement online on Tuesday evening. A red flag warning ...