IPA: /ˌmɛtəˈmæθəˌmætɪks/
KK: /mɛtəˌmæθəˈmætɪks/
This is a field of study in mathematics that focuses on the foundations, logic, and consistency of mathematical theories and proofs.
Metamathematics helps mathematicians understand the principles behind mathematical reasoning.
Metamathematics is formed from "meta-" (meaning beyond or transcending) and "mathematics" (from Greek "mathematike", meaning the science of learning or knowledge). The term refers to the study of the foundations and implications of mathematics, going beyond the subject itself.
Think of 'meta-' meaning beyond, and 'mathematics' as the study of numbers and logic. This helps you remember that metamathematics is about studying the principles that go beyond just mathematics.