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1 (* Title: HOL/Old_Number_Theory/Fib.thy |
1 (* Title: HOL/Old_Number_Theory/Fib.thy |
2 Author: Lawrence C Paulson, Cambridge University Computer Laboratory |
2 Author: Lawrence C Paulson, Cambridge University Computer Laboratory |
3 Copyright 1997 University of Cambridge |
3 Copyright 1997 University of Cambridge |
4 *) |
4 *) |
5 |
5 |
6 header {* The Fibonacci function *} |
6 section {* The Fibonacci function *} |
7 |
7 |
8 theory Fib |
8 theory Fib |
9 imports Primes |
9 imports Primes |
10 begin |
10 begin |
11 |
11 |