Chain equalities with calc

A readable proof that shows each rewriting step and its justification.

12 minIntermediate
0/8 completed in this course
Lean workspaceWrite only the proof steps. The theorem above is fixed.
Enter after constructor adds both goal bullets
Exercise.leanLean 4.30.0
Loading editor…

No problems detected so far. Run a check to hear from Lean.

ReadyLn 1, Col 1Pre-check passedLean 4