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What language coined the term lvalue?

Was C the first programming language to use the term lvalue, or does it go further? Note that I'm not talking about the general concept of "something on the left side of the assignment operator" (which he had not mentioned in C ++ for a long time). You can find it in almost any imperative programming language. I specifically ask a question about the value of lvalue. Where did she come from?

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c ++ c terminology history lvalue
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The concept of lvalues ​​and rvalues ​​was introduced by CPL .

http://en.wikipedia.org/wiki/L-value

This link will not work for some reason ...

https://en.wikipedia.org/wiki/Value_(computer_science)#lrvalue

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Terms are coined in computer science, the concept of lvalues ​​and rvalues ​​was introduced by CPL . More details can be found in this article.

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