Phenomenology is the study of experience and how things are presented through experience. Reduction in philosophy refers to the idea that if entity x reduces to entity y, then y is more basic than x and x depends on y. There are three types of reduction in phenomenology: epoche involves suspending natural attitudes towards an object, eidetic reduction reduces experience to its essence, and transcendental reduction reduces an object to the activity of one's consciousness.

3. PHENOMENOLOGY
It is the study of experience and the ways in which
things present themselves in and through
experience. (New World Encyclopedia)

8. REDUCTION
The term ‘reduction’ as used in philosophy expresses
the idea that if an entity x reduces to an
entity y then y is in a sense prior to x, is more basic
than x, is such that x fully depends upon it or
is constituted by it.
(The Stanford Encyclopedia of Philosophy)

9. Types of Reduction

10. Types of Reduction
1. Epoche – the bracketing or suspending of the
natural attitude toward an object

13. Types of Reduction
1. Epoche – the bracketing or suspending of the
natural attitude toward an object
2. Eidetic Reduction – the reduction of experience to
its essence

15. Types of Reduction
1. Epoche – the bracketing or suspending of the
natural attitude toward an object
2. Eidetic Reduction – the reduction of experience to
its essence
3. Transcendental Reduction – the reduction of an
object to the very activity of one’s consciousness.

30. 1. Joven, J., & Perez, R. (2016). Introduction to
Philosophy of the Human Person. Mandaluyong
City: Books Atbp. Publishing Corp. p. 19
2. van Riel, Raphael and Van Gulick, Robert,
"Scientific Reduction", The Stanford Encyclopedia
of Philosophy (Spring 2019 Edition), Edward N.
Zalta (ed.), URL =
<https://plato.stanford.edu/archives/spr2019/entries/
scientific-reduction/>.