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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...rly fascinated by it. It implies that for every programming concept there exists a precise analogue in formal logic, and vice versa. Here's a "basic" list of such analogies, off the top of my head:
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plot a circle with pyplot
... a circle with matplotlib.pyplot (please no pylab) taking as input center (x,y) and radius r. I tried some variants of this:
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EF LINQ include multiple and nested entities
...Chapters))
.Include(i => i.Lab)
.Single(x => x.Id == id);
Your solution fails because Include doesn't take a boolean operator
Include(i => i.Modules.Select(s => s.Chapters) && i.Lab)
^^^ ^ ...
difference between foldLeft and reduceLeft in Scala
...a special case of foldLeft (which by the way means that you sometimes can express the same thing by using either of them).
When you call reduceLeft say on a List[Int] it will literally reduce the whole list of integers into a single value, which is going to be of type Int (or a supertype of Int, he...
Unpacking array into separate variables in JavaScript
...mple problem, and I've done it before. I just can't remember how, or what exactly it was called.
7 Answers
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Arguments or parameters? [duplicate]
...ngs passed as parameters.
void foo(int bar) { ... }
foo(baz);
In this example, bar is a parameter for foo. baz is an argument passed to foo.
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Ruby: How to get the first character of a string
...l as about everybody else who would like to learn from that question. For example, Mac OS X comes bundled with Ruby 1.8, so no installation is required for these users.
– Marc-André Lafortune
Apr 28 '10 at 17:11
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Creating a new dictionary in Python
I want to build a dictionary in Python. However, all the examples that I see are instantiating a dictionary from a list, etc . ..
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How can I add additional PHP versions to MAMP
...rent version of MAMP that I have only has php 5.2.17 and 5.4.4. I need 5.3.X. Is there a way to add additional versions that can be selected in the MAMP interfaces php preferences? This is for the free version of MAMP, not MAMP PRO.
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MySQL Data - Best way to implement paging?
... two numeric arguments, which must both be nonnegative integer constants (except when using prepared statements).
With two arguments, the first argument specifies the offset of the first row to return, and the second specifies the maximum number of rows to return. The offset of the initial row is 0 ...