te-invo - brismu bridi

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Theorem te-invo 326

Description: {te} is an involution. (Contributed by la korvo, 18-Jul-2023.)

**Hypothesis**
Ref	Expression
te-invo.0	⊢ ko'a te te bu'a ko'e ko'i

**Assertion**
Ref	Expression
te-invo	⊢ ko'a bu'a ko'e ko'i

**Proof of Theorem te-invo**
Step	Hyp	Ref	Expression
1		te-invo.0	. . 3 ⊢ ko'a te te bu'a ko'e ko'i
2	1	tei 324	. 2 ⊢ ko'i te bu'a ko'e ko'a
3	2	tei 324	1 ⊢ ko'a bu'a ko'e ko'i

Colors of variables: sumti selbri bridi

Syntax hints: te sbt 322

This theorem was proved from axioms: ax-mp 10 ax-ge-le 34

This theorem depends on definitions: df-go 52 df-te 323

This theorem is referenced by: (None)