While simple text programs like Notepad can create basic typed documents, more robust word processor programs allow you to insert special characters and equations. Microsoft Word includes an equation editor tool to create mathematical formulas within the text document. The equation editor tool contains a variety of commonly used mathematical expressions, such as the "belongs to" symbol. This symbol resembles a smaller and more curved "E." You can also find an equation editor tool in other free programs if you do not have Microsoft Word, such as Google documents.
Open your Word document and click on the area you wish to insert the "belongs to" symbol.
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Click the "Insert" tab on the menu bar, then click on the "Equation" button located on the far right of the menu bar. Alternatively, click the arrow underneath the "Equation" button and select "Insert new Equation."
Highlight the equation editor box to open the "Design" tab on the menu bar. Select the "belongs to" symbol from the list provided. Click on any part of the document to exit the equation editor box once you have finished inserting the symbol.
Sign into to your Gmail account and navigate to the Google Documents program by selecting "Documents" from the menu bar. Open the document you want to edit or create a new one.
Click on the space in your document that you want to insert the symbol. Click "Insert" on the menu bar and select "Equation."
Look at the newly appeared Equation toolbar to see a list of different functions. Click on the third set of functions from the left, which will include a "not equal" sign.
Select the "belongs to" symbol from the drop-down list to insert it into the document.