SR should not coerce into QQbar

[dkrenn]

sage: QQbar.has_coerce_map_from(SR)
True

which is wrong.

Component: symbolics

Issue created by migration from https://trac.sagemath.org/ticket/19231

[rwst]

comment:1

Isn't this so that QQbar(expression with sqrt) will work?

[dkrenn]

comment:2

Replying to @rwst:

Isn't this so that QQbar(expression with sqrt) will work?

There cannot be a coercion from SR to QQbar since, for example, QQbar(SR(pi)) or QQbar(SR(e^x)) does not (and cannot) work.

[fchapoton]

comment:3

This is now saying False and doctested in qqbar.py

[slel]

comment:4

Replying to @fchapoton:

This is now saying False and doctested in qqbar.py

For reference, this is since #14485 was merged.