gt-zero-ref - brismu bridi

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Theorem gt-zero-ref 622

Description: Refutation of any natural number less than zero. (Contributed by la korvo, 21-Jun-2024.)

**Hypothesis**
Ref	Expression
gt-zero-ref.0	⊢ ko'a kacme'a li no

**Assertion**
Ref	Expression
gt-zero-ref	⊢ gai'o

**Proof of Theorem gt-zero-ref**
Step	Hyp	Ref	Expression
1		ax-gt-zero 621	. 2 ⊢ naku ko'a kacme'a li no
2		gt-zero-ref.0	. 2 ⊢ ko'a kacme'a li no
3	1, 2	nakuii 279	1 ⊢ gai'o

Colors of variables: sumti selbri bridi

Syntax hints: kacme'a bkacmeha 620

This theorem was proved from axioms: ax-mp 10 ax-ge-le 48 ax-gt-zero 621

This theorem depends on definitions: df-go 83 df-naku 274

This theorem is referenced by: (None)