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# expressible

*expressible* over $F$ if $F(\alpha)/F$ is a radical extension. On the other hand, $\alpha$ is *inexpressible* over $F$ if $F(\alpha)/F$ is not a radical extension.

Defines:

inexpressible

Major Section:

Reference

Type of Math Object:

Definition

Parent:

## Mathematics Subject Classification

12F05*no label found*12F10

*no label found*

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## Recent Activity

Oct 21

new question: Prime numbers out of sequence by Rubens373

Oct 7

new question: Lorenz system by David Bankom

Oct 19

new correction: examples and OEIS sequences by fizzie

Oct 13

new correction: Define Galois correspondence by porton

Oct 7

new correction: Closure properties on languages: DCFL not closed under reversal by babou

new correction: DCFLs are not closed under reversal by petey

Oct 2

new correction: Many corrections by Smarandache

Sep 28

new question: how to contest an entry? by zorba

new question: simple question by parag

new question: Prime numbers out of sequence by Rubens373

Oct 7

new question: Lorenz system by David Bankom

Oct 19

new correction: examples and OEIS sequences by fizzie

Oct 13

new correction: Define Galois correspondence by porton

Oct 7

new correction: Closure properties on languages: DCFL not closed under reversal by babou

new correction: DCFLs are not closed under reversal by petey

Oct 2

new correction: Many corrections by Smarandache

Sep 28

new question: how to contest an entry? by zorba

new question: simple question by parag

## Comments

## inexpressible

The reason that I currently have this entry world editable is that I do not seem to recall whether transcendentals are considered as inexpressible or not. I currently have the terms expressible and inexpressible only applying to algebraics.