prove this geometry axiams using direct, indirect or contradiction method?

khan j

New member
axiam 1: every line is a set of points.
axiam 2: for each line 'L' there is a point on 'L'.
axiam 3: there exists at least 2 points.
axiam 4:for every point of distinct points there is one and only one line containing these points.

show that there are at least three lines.
actually i can't get it all it is beyond my knowledge .plz i need this to be solved it will bear me 15 marks
 
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