Here I present: Abraham Nemeth, Nemeth Code of Braille’ Mathematics, 1956, PART THREE (III).
INTRODUCTION.
Abraham Nemeth developed Braille’ mathematical standards for the completion of his PhD dissertation in 1946. Over the years Abraham Nemeth Braille’ mathematical standards have been adopted in education. I have a list of eighty–one (81) mathematical signs alphabetical ordered BELOW. The Taylor mathematical frame (shown ABOVE) is the favorite tool of blind students; and I as sighted have come understand the popularity of the Taylor mathematical frame.
| A | Absolute value sign |
| Aleph infinity sign | |
| And operator sign | |
| Approximately equal sign | |
| B | Binomial coefficient sign |
| C | Ceiling function sign |
| Complex conjugate sign | |
| Complex numbers | |
| Conditional Implication sign | |
| D | Divisiblity sign |
| Division sign | |
| E | Element not-subset sign |
| Element subset sign | |
| Empty set sign | |
| Equal sign | |
| Exclusive Or operator sign | |
| Existential quantifier sign | |
| F | Factorial sign |
| Factur infinity sign | |
| Fancy “I” imaginary of complex | |
| Fancy “R” real of complex number | |
| Floor function sign | |
| Function composition arrow sign | |
| Function composition sign | |
| G | Greater than or equal sign |
| Greater than sign | |
| I | Infinite line sign |
| Infinity symbol | |
| Integers | |
| Integral sign | |
| L | Lagrange notation sign |
| Leibniz notation sign | |
| Less than or equal sign | |
| Less than sign | |
| Limit sign | |
| Line ray sign | |
| Line segment sign | |
| Logarithm sign | |
| Logical equivalence sign | |
| M | Minus sign |
| Minus-plus sign | |
| Much greater than sign | |
| Much less than sign | |
| Multiplication sign | |
| N | Natural logarithm sign |
| Natural numbers | |
| Nearest integer function sign | |
| Negation sign | |
| Newton notation sign | |
| Non Divisiblity sign | |
| Non Parallelism sign | |
| Not equal sign | |
| Number sign | |
| O | Octonions |
| Or operator sign | |
| P | Parallelism sign |
| Partial derivative sign | |
| Perpendicularity sign | |
| Pi product sign | |
| Plus sign | |
| Plus-minus sign | |
| Proportional sign | |
| Q | Quaternions |
| R | Rational numbers |
| Real numbers | |
| S | Set difference sign |
| Set element sign | |
| Set inclusion sign | |
| Set intersection sign | |
| Set not-element sign | |
| Set symmetric-difference sign | |
| Set union sign | |
| Sigma summation sign | |
| Similarity/Proportional sign | |
| Square root sign | |
| T | Tee (true) sign |
| Triple bar sign | |
| U | Uniqueness quantifier sign |
| Universal number set | |
| Universal quantifier sign | |
| Up tack sign |
