These practices include subjectivity, objectivity, and reflexivity. Symmetry, along with reflexivity and transitivity, are the three defining properties of an equivalence relation. This includes various distinctions of reflexivity, passivity, and causativity. In intuitionistic type theory, new terms of equality start with reflexivity. In the absence of reflexivity we have to distinguish left and right orthogonality. This follows directly from the axiom of reflexivity. This is closely related to the notion of reflexivity for binary relations. Prove&colon; formula 167 (Reflexivity of implication). The study of reflexivity shows that people have both self-awareness and creativity in culture. Margaret Archer has written extensively on laypeople's reflexivity. One use of studying reflexivity is in connection to authenticity. This type of reflection is often referred to as reflexivity. Despite these attempts of reflexivity, no researcher can be totally unbiased. That the sequence of zero operations is allowed accounts for the reflexivity of formula 21. Similarly, all four preserve reflexivity.