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@ -392,14 +392,10 @@ By the way, in these examples, `i` indicates that the number is an integer.
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Rust is a statically typed language, which means that we specify our types up
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Rust is a statically typed language, which means that we specify our types up
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front. So why does our first example compile? Well, Rust has this thing called
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front. So why does our first example compile? Well, Rust has this thing called
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"[Hindley-Milner type
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"type inference." If it can figure out what the type of something is, Rust
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inference](http://en.wikipedia.org/wiki/Hindley%E2%80%93Milner_type_system)",
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named after some really smart type theorists. If you clicked that link, don't
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be scared: what this means for you is that Rust will attempt to infer the types
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in your program, and it's pretty good at it. If it can infer the type, Rust
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doesn't require you to actually type it out.
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doesn't require you to actually type it out.
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We can add the type if we want to. Types come after a colon (`:`):
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We can add the type if we want to, though. Types come after a colon (`:`):
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```{rust}
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```{rust}
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let x: int = 5;
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let x: int = 5;
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