From this he invented the concept of a Game and the addition operator for it.

For the Greeks did not merely invent the concept of democracy.

The front office did not exactly invent the concept of counselor for a team.

It was he who invented the concept of "pavement politics".

America invented the concept of image, but today suffers from an exceedingly poor one.

Hall created the child study movement, which helped to invent the concept of the "normal" child.

She may have invented the concept of competitive money managers.

But we feel it does matter, because humans invented the concept of things 'mattering'.

It was he who invented the concept of beauty.

To go further, it was necessary to invent the concept of effective interaction.