Arrow-implication

Question

I'm writing my thesis and I need use a symbol of science implication that looks like

or maybe something like

but thicker.

I'm curious how to generate it.

This link How to look up a symbol or identify a math symbol or character? doesn't help me

Answer 1

First option (with STIX)

\documentclass{article}

\DeclareFontEncoding{LS2}{}{}
\DeclareFontSubstitution{LS2}{stix}{m}{n}
\DeclareSymbolFont{arrows3}{LS2}{stixtt}{m}{n}

\DeclareMathSymbol{\saizouimplies}{\mathrel}{arrows3}{'053}

\begin{document}

$A\saizouimplies B \rightarrow C$

\end{document}

Second option (with NewTX)

\documentclass{article}

\DeclareSymbolFont{symbolsC}{U}{ntxsyc}{m}{n}
\DeclareMathSymbol{\saizouimplies}{\mathrel}{symbolsC}{74}

\begin{document}

$A\saizouimplies B \rightarrow C$

\end{document}