AbdelRahmanShady
Junior Member
- Joined
- Jul 20, 2021
- Messages
- 123
I was reading robert beezer book about linear algebra and in a part he proved guassian elimination using a constructive proof
The proof involved adding a new column
and perform some operations on the matrix that dont change its solution set but keep it row reduced ,the problem is during second paragraph he said adding a new column with r+1 to m rows of matrix is zero then the matrix is row reduced
but he didnt specify how the new matrix met the definition of row reduce echolon form,
Am I missing something or is the proof missing
The proof involved adding a new column
and perform some operations on the matrix that dont change its solution set but keep it row reduced ,the problem is during second paragraph he said adding a new column with r+1 to m rows of matrix is zero then the matrix is row reduced
but he didnt specify how the new matrix met the definition of row reduce echolon form,
Am I missing something or is the proof missing