Prism (geometry): Difference between revisions

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en>JohnBlackburne
Reverted good faith edits by Pol098 (talk): That's just an example of it's use in the real world, or a marketing name, but is not about the shape (and that's not a RS). (TW)
en>Top.Squark
Removing image of Azrieli towers: they are not a prism as one of them is round
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In [[mathematical logic]], '''logical assertion''' is a statement that [[Speech_act#Classifying_illocutionary_speech_acts|asserts]] that a certain premise is true, and is useful for statements in proof. It is equivalent to a [[sequent]] with an empty [[antecedent (logic)|antecedent]].
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For example, if ''p''&nbsp;=&nbsp;"''x''&nbsp;is&nbsp;even", the implication
:<math> (\vdash p)\rightarrow(x \pmod 2 \equiv 0)</math>
is thus true. We can also write this using the logical assertion symbol, as
:<math> \vdash \left( (\vdash p)\rightarrow(x \pmod 2 \equiv 0) \right)</math>
 
In computer programming and [[Semantics (computer science)|programming language semantics]], these are used in the form of [[assertion (computing)|assertions]]; one example is a [[loop invariant]].
 
[[Category:Mathematical logic]]
 
{{Mathlogic-stub}}

Revision as of 16:03, 5 February 2014

I'm Wilton and I live in Lyddington.
I'm interested in Athletics and Physical Education, Vehicle restoration and Danish art. I like travelling and reading fantasy.

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