Is "WITH RECURSIVE" limited to the first position of CTEs by design?

Team,
This was strange. I wanted to set up a CTE that would FEED my recursive
query.
And also feed the results filtering...

These are the most trivial examples. The second one results in a syntax
error. Which implies that:
1) There can only be one recursive CTE at the same level?
2) It must be the FIRST CTE?

Example:
WITH RECURSIVE CTE1 AS (select 2 UNION ALL SELECT 0),
CTE2 AS (select 1 UNION ALL SELECT 0) select 3 ;

-- This does not work:

WITH CTE1 AS (select 2 UNION ALL SELECT 0),
RECURSIVE CTE2 AS (select 1 UNION ALL SELECT 0)
SELECT 3;
--> ERROR: syntax error at or near "CTE2"

Thanks in advance...

Kirk