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joja [24]
3 years ago
8

What’s the definition of influenza

History
1 answer:
4vir4ik [10]3 years ago
6 0

a common viral infection that can be fatal. this infection spread fast from person to person and mutates causing humans to find new vaccines every year

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1 plus 1 is 2 very easy
Bumek [7]

Answer:

indeed it is

Explanation:

Whitehead and Russell's Principia Mathematica is famous for taking a thousand pages to prove that 1+1=2. Of course, it proves a lot of other stuff, too. If they had wanted to prove only that 1+1=2, it would probably have taken only half as much space.

Principia Mathematica is an odd book, worth looking into from a historical point of view as well as a mathematical one. It was written around 1910, and mathematical logic was still then in its infancy, fresh from the transformation worked on it by Peano and Frege. The notation is somewhat obscure, because mathematical notation has evolved substantially since then. And many of the simple techniques that we now take for granted are absent. Like a poorly-written computer program, a lot of Principia Mathematica's bulk is repeated code, separate sections that say essentially the same things, because the authors haven't yet learned the techniques that would allow the sections to be combined into one.

For example, section ∗22, "Calculus of Classes", begins by defining the subset relation (∗22.01), and the operations of set union and set intersection (∗22.02 and .03), the complement of a set (∗22.04), and the difference of two sets (∗22.05). It then proves the commutativity and associativity of set union and set intersection (∗22.51, .52, .57, and .7), various properties like α∩α=α" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">α∩α=αα∩α=α (∗22.5) and the like, working up to theorems like ∗22.92: α⊂β→α∪(β−α)" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">α⊂β→α∪(β−α)α⊂β→α∪(β−α).

Section ∗23 is "Calculus of Relations" and begins in almost exactly the same way, defining the subrelation relation (∗23.01), and the operations of relational union and intersection (∗23.02 and .03), the complement of a relation (∗23.04), and the difference of two relations (∗23.05). It later proves the commutativity and associativity of relational union and intersection (∗23.51, .52, .57, and .7), various properties like α∩˙α=α" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">α∩˙α=αα∩˙α=α (∗22.5) and the like, working up to theorems like ∗23.92: α⊂˙β→α∪˙(β−˙α)" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 16px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">α⊂˙β→α∪˙(β−˙α)α⊂˙β→α∪˙(β−˙α.

4 0
2 years ago
According to alexis de tocqueville, which form of government was already the "enduring and normal state" of the land in the unit
Karolina [17]
Democracy--Tocqueville traveled to the US from France and observed the democratic nature of the country. 

Tocqueville was surprised by the voice ordinary citizens had in America. The lowest of society could vote (if male) and had access to basic education and jobs. 
3 0
3 years ago
Why did American Indians show little resistance to European diseases?
eimsori [14]

The answer is they had never experienced European diseases before. Since they never encountered these kinds of diseases before, their bodies had no resistance to them.  When they were exposed, the effect was devastating as many perished upon contracting the diseases.

4 0
3 years ago
The belief that people can rise as far as their talents will take them, no matter how humble their origins, was called
Elden [556K]

The belief that people can rise as far as their talents will take them, no matter how humble their origins, is called Individualism.

This particular ideology considers that every person has the same potential to fulfill their own goals and desires. The individual is self-reliant and can achieve anything by his own merit and effort. It's a line of thought that has very <u>strong historical implications</u>, as it serves for the basis of liberalism and capitalism dominating our world to this day. This idea disregards all political, social and economic context, which in reality are all crucial factors when determining the actual possibilities each person has depending on what situation they're born into.


Hope this helps!

4 0
3 years ago
Solve 2x 2+ 10x + 4x + 20 using the grouping method
Rom4ik [11]

Answer:

2(12 + 7x) 0r 24+14x

Explanation:

The first one is factoring and the second is simplified

3 0
2 years ago
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