Fix for MatrixSymbol and Export stuck issue in Mathematica (Wolfram?) v14 by riasat-sheikh · Pull Request #6 · FeynRules/FeynRules · GitHub
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Fix for MatrixSymbol and Export stuck issue in Mathematica (Wolfram?) v14 - #6

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Fix for MatrixSymbol and Export stuck issue in Mathematica (Wolfram?) v14#6
riasat-sheikh wants to merge 2 commits into
FeynRules:feynrules-currentfrom
riasat-sheikh:feynrules-current

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@riasat-sheikh

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It seems Mathematica (Wolfram?) v14 started protecting some symbols (Commutator, MatrixSymbol), which broke the custom definitions referenced in #3 and #5.

This fix temporarily unprotects them while FeynRules uses it, then restores their protection.

Tested on Mathematica (Wolfram?) 14.3 + macOS 26.1 (default SM.nb exports complete without warnings).

@ahamaline

ahamaline commented Dec 16, 2025

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@maxfieg1

maxfieg1 commented Jan 29, 2026

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3 participants