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**To**:*Hans Aberg <haberg@matematik.su.se>***Subject**:**Re: MathML arrow fonts****From**:*Taco Hoekwater <taco.hoekwater@wkap.nl>***Date**: Wed, 18 Nov 1998 09:39:14 +0100 (W. Europe Standard Time)**Cc**:*math-font-discuss@cogs.susx.ac.uk, vojta@math.berkeley.edu (Paul Vojta)*- Content-Length: 1080

>>>>> "HA" == Hans Aberg <haberg@matematik.su.se> writes: HA> At 12:20 -0800 1998/11/17, Paul Vojta wrote: >> Also, I often use a symbol which I build up as \overset\sim\to\to >> (as in ``The isomorphism $f\:X \overset\sim\to\to Y$ \dots''). I >> would like to see such a symbol included as well. (And a >> left-pointing version of the same.) HA> In AMS-LaTeX this is $\overset\sim\to$, an arrow --> with a \sim HA> used as label. Have a look at chars 105/107. Are these the ones intended? they are labeled "simrightarrow" and "simleftarrow". HA> I prefer the variation where the \sim is replaced by a \cong, but HA> the semantics is the same (isomorphism). HA> But I also think one should have such isomorphism arrows, both HA> right and left pointing, in at least one of the possible HA> variations. There is also the variation with the \cong or \sim HA> replaced by an equality, used to indicate that the arrow is the HA> identity. Hans, is this char 109? And if it is, I guess we need a left version as well (meaning it has a fixed semantic)? Taco

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