Praxis is the process by which theory is implemented in activism. Praxis has been prominent in philosophy through out its history, drawing influence from philosophers such as Soren Kierkegaard, Karl Marx., Heidegger and Aristotle 
Aristotle introduced the concept of praxis in Nicomahean Ethics. Aristotle asserts that there are three basic activities of humans: theory, creation, and praxis. Aristotle was sure to differentiate good praxis, which he calls eupraxia and bad praxis which he calls dyspraxia . Aristotle's goals for these three activities are as follows: Theory is working toward an end that is truth. Creation has an end goal that is production. Praxis (or practical) has an end goal that is action. However, Aristotle is using praxis to refer to actions of individuals to contribute to their flourishing, not necessarily groups of individuals as it is used in social justice terminology.
Karl Marx viewed praxis as revolution of the proletariat to overthrow the oppression of capitalism as a step to install socialism and eventually communism .
Implementation of theory
- Aristotle, NE, VI, 5, 1140b7