There are various way to achieve this.
No 1
select * from sys.procedures
No 2
Select OBJECT_SCHEMA_NAME([object_id])+'.'+ name FROM sys.procedures
No 3
SELECT
SchemaName = s.name,
ProcedureName = pr.name
FROM
sys.procedures pr
INNER JOIN
sys.schemas s ON pr.schema_id = s.schema_id
No 1
select * from sys.procedures
No 2
Select OBJECT_SCHEMA_NAME([object_id])+'.'+ name FROM sys.procedures
No 3
SELECT
SchemaName = s.name,
ProcedureName = pr.name
FROM
sys.procedures pr
INNER JOIN
sys.schemas s ON pr.schema_id = s.schema_id