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\DOC current_proof_file
\TYPE {current_proof_file : void -> string}
\KEYWORDS
proof recording.
\LIBRARY
record_proof
\SYNOPSIS
Get the name of the current proof file.
\DESCRIBE
The function {current_proof_file} returns the name of the current
proof file which has been opened by calling the function {new_proof_file}.
A null string {``} indicates that no current proof file is opened.
\FAILURE
Never fail.
\EXAMPLE
Below is an example showing the use of this function:
{
#new_theory`THY`;;
() : void
#new_proof_file`myproof`;;
() : void
#prove_thm(`ADD_0`,
# "!m. m + 0 = m",
# INDUCT_TAC THEN ASM_REWRITE_TAC[ADD]);;
|- !m. m + 0 = m
#current_proof_file();;
`myproof` : string
#close_proof_file ();;
() : void
#current_proof_file();;
`` : string
}
\SEEALSO
current_proof, close_proof_file, new_proof_file, begin_proof, end_proof,
TAC_PROOF, PROVE, prove, prove_thm
\ENDDOC
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