Jacques Derrida is widely regarded as one of the most influential figures in the development of post-structuralism, particularly through his work on deconstruction.

Deconstruction seeks to undermine the authority of traditional interpretations by showing how they are based on arbitrary and unstable foundations.

Post-structuralism challenges traditional notions of truth and objectivity by arguing that truth is relative and subjective, that objectivity is impossible, and that knowledge is always mediated by power.

Post-structuralism has had a profound impact on social theory, particularly through its influence on the work of Michel Foucault and Judith Butler.

Post-structuralism has influenced political theory by challenging traditional notions of sovereignty and the state, promoting new forms of political resistance, and providing a theoretical framework for understanding the rise of identity politics.

Dialectic is a key concept in Hegelian and Marxist thought, but it is not a central concept in post-structuralism.

The concept of discourse in post-structuralism shows how language shapes our understanding of the world, reveals the power relations that underlie social interactions, and provides a new way of understanding the relationship between knowledge and power.

Post-structuralism challenges traditional notions of identity by showing that identity is fluid and multiple, rather than fixed and unchanging.

Post-structuralism has been influential in the development of feminist theory, particularly through the work of Judith Butler and other feminist scholars.

Post-structuralism has influenced queer theory by providing a theoretical framework for understanding the construction of sexual identities, challenging traditional notions of gender and sexuality, and promoting new forms of queer activism.

Post-structuralism has been criticized for being too relativistic and undermining the possibility of objective truth, for being too focused on language and ignoring the material conditions of life, and for being too pessimistic and offering no hope for social change.

Despite its criticisms, post-structuralism is still considered an important and influential intellectual movement because it has provided new and innovative ways of thinking about language, power, and identity, challenged traditional assumptions and opened up new possibilities for social and political thought, and inspired new forms of activism and resistance.

Friedrich Nietzsche is a key figure in the development of postmodernism, but he is not considered a post-structuralist.

Post-structuralism is generally considered to be a branch of postmodernism, although there are some differences between the two movements.

Post-structuralism has influenced contemporary art and culture by challenging traditional notions of authorship and originality, promoting new forms of artistic expression, and inspiring new forms of cultural criticism.