Description: Value of X sequence at 1. Part 2 of equation 2.11 of JonesMatijasevic p. 695. (Contributed by Stefan O'Rear, 22-Sep-2014)
Ref | Expression | ||
---|---|---|---|
Assertion | rmx1 | |- ( A e. ( ZZ>= ` 2 ) -> ( A rmX 1 ) = A ) |
Step | Hyp | Ref | Expression |
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1 | rmxy1 | |- ( A e. ( ZZ>= ` 2 ) -> ( ( A rmX 1 ) = A /\ ( A rmY 1 ) = 1 ) ) |
|
2 | 1 | simpld | |- ( A e. ( ZZ>= ` 2 ) -> ( A rmX 1 ) = A ) |