Theorem fconst6 5536

Description: A constant function as a mapping. (Contributed by Jeff Madsen, 30-Nov-2009.) (Revised by Mario Carneiro, 22-Apr-2015.)

Hypothesis

Ref	Expression
fconst6.1	|- B e. C

Assertion

Ref	Expression
fconst6	|- ( A X. { B } ) : A --> C

Proof of Theorem fconst6

Step	Hyp	Ref	Expression
1		fconst6.1	. 2 |- B e. C
2		fconst6g 5535	. 2 |- ( B e. C -> ( A X. { B } ) : A --> C )
3	1, 2	ax-mp 5	1 |- ( A X. { B } ) : A --> C

Syntax hints:   e. wcel 2202   {csn 3669   X. cxp 4723   -->wf 5322

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299

This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-v 2804  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-fun 5328  df-fn 5329  df-f 5330

This theorem is referenced by:  0ct  7305  ctm  7307  infnninfOLD  7323  exmidomni  7340  ofnegsub  9141  0nninf  16606  exmidsbthrlem  16626