So we are comparing:
~にすぎない vs. ~だけ (Test for equal)
~にすぎない vs. ~にかぎらない (Test for opposite)
~にかぎらない vs. ~だけじゃない (Test for equal)
In 1. we have not exceeding ~ and only ~.
Lets say we have a number line from zero to ten.
not exceeding 5 are "0, 1, 2, 3, 4, 5".
only 5 is "5".
So ~にすぎない is not equivalent to ~だけ.
In 2. we have not exceeding ~ and not limited to ~
Lets have a number line from zero to ten.
not exceeding 5 are "0, 1, 2, 3, 4, 5".
not limited to 5 are "0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10"
(limited to 5 are "0, 1, 2, 3, 4, 5".)
Is not exceeding ~ equal to the opposite of not limited to ~? Yes.
Is not limited to ~ equal to the opposite of not exceeding ~? No.
Now lets have random data that has no order and unsorted. Lets say I have "A, Q, W, M, D, C, P"
not exceeding M makes no sense anymore.
limited to M is not "A, Q, W, M". It is instead just "M".
not limited to M are "A, Q, W, M, D, C, P".
Is not exceeding ~ equal to the opposite of not limited to ~? N/A.
Is not limited to ~ equal to the opposite of not exceeding ~? N/A.
In 3. we have not limited to ~ and not only ~
Lets have a number line from zero to ten.
not limited to 5 are "0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10"
not only 5 are "0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10"
Now lets have random data that has no order and unsorted. Lets say I have "A, Q, W, M, D, C, P"
not limited to M are "A, Q, W, M, D, C, P".
not only M are "A, Q, W, M, D, C, P".
So ~にかぎらない is equal to ~だけじゃない