TC/SE Maths Strategy Doubt

[idea1] ; However, [idea2]

Will these two ideas considered to be same or saying the same thing because of “;” or they are contrasting due to “However”?

The semicolon links two complete sentences closely (support); “however” signals contrast (-). Therefore, ideas will contrast.

Eg. “The model is fast; however, it is inaccurate.” → fast but inaccurate.