The term "grounded" is to have meaning which references some external reality. He meant that a NN which can perform symbolic algebra would demonstrate that symb

The term "grounded" is to have meaning which references some external reality. He meant that a NN which can perform symbolic algebra would demonstrate that symbols are grounded in some meaning outside the identification/pattern matched sense. They have meaning outside of "an or symbol, an and symbol, a true symbol" with additional information in their relationships that a NN can understand well enough to use them in context.