# Category:Principles of Mathematics

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This category contains pages that are part of the Principles of Mathematics book.

The following 12 pages are in this category, out of 12 total.

### I

### S

- Principles of Mathematics/Set theory
- Principles of Mathematics/Set theory/Classes and foundation
- Principles of Mathematics/Set theory/Natural numbers
- Principles of Mathematics/Set theory/Pairs
- Principles of Mathematics/Set theory/Power sets
- Principles of Mathematics/Set theory/Replacement
- Principles of Mathematics/Set theory/Sets elements and subsets
- Principles of Mathematics/Set theory/Union and intersection