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[distro-setup] / .vim / ftplugin / imath.vim

" my math filetype that extends txt for unicode/ascii math symbol abbreviations
ab pi π
ab sqrt √
ab intg ∫
ab ^2 ²
ab sigma σ
ab mew µ
ab half ½
ab epsilon ε 03b5
ab _0 ₀
ab _1 ₁
ab beta β
ab && ∩