Theorem fconst6 5590

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 ∈ 𝐶

Assertion

Ref	Expression
fconst6	⊢ (𝐴 × {𝐵}):𝐴⟶𝐶

Proof of Theorem fconst6

Step	Hyp	Ref	Expression
1		fconst6.1	. 2 ⊢ 𝐵 ∈ 𝐶
2		fconst6g 5589	. 2 ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}):𝐴⟶𝐶)
3	1, 2	ax-mp 5	1 ⊢ (𝐴 × {𝐵}):𝐴⟶𝐶

Syntax hints:   ∈ wcel 2209  {csn 3708   × cxp 4770  ⟶wf 5371

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 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4247  ax-pow 4309  ax-pr 4344

This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3714  df-pr 3715  df-op 3717  df-br 4129  df-opab 4191  df-mpt 4192  df-id 4436  df-xp 4778  df-rel 4779  df-cnv 4780  df-co 4781  df-dm 4782  df-rn 4783  df-fun 5377  df-fn 5378  df-f 5379

This theorem is referenced by:  0ct  7441  ctm  7443  infnninfOLD  7459  exmidomni  7476  ofnegsub  9286  0nninf  17021  exmidsbthrlem  17041