forward-line(2)

NAME

forward-line - Move the cursor to the next line
backward-line - Move the cursor to the previous line

n forward-line (C-n)
n backward-line (C-p)

forward-line moves the cursor down n lines, default 1. If the line is not on the current screen then display the next page and move to the line.

backward-line moves the cursor up n lines, if the line is not on the current screen then display the previous page and move to the line.

For both invocations a negative value reverses the sense of movement as expected.