There is a bad design step ladder. You can't step from one step to the next because its dangerous. . However, you feel c

[answerhappygod]

There is a bad design step ladder. You can't step from one step
to the next because its dangerous. . However, you feel confident
with your ability to skip to the next step (step two up), or jump
up three steps at a time. You don't know the height of this
stepladder, but you know you can go up them using this plan. Use
strong induction to show that you can go up the stepladder of this
type of any height, if there are two or more steps.