Theorem constmap 43818

Description: A constant (represented without dummy variables) is an element of a function set.

Note: In the following development, we will be quite often quantifying over functions and points in N-dimensional space (which are equivalent to functions from an "index set"). Many of the following theorems exist to transfer standard facts about functions to elements of function sets. (Contributed by Stefan O'Rear, 30-Aug-2014.) (Revised by Stefan O'Rear, 5-May-2015.)

Hypotheses

Ref	Expression
constmap.1	⊢ 𝐴 ∈ V
constmap.3	⊢ 𝐶 ∈ V

Assertion

Ref	Expression
constmap	⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}) ∈ (𝐶 ↑m 𝐴))

Proof of Theorem constmap

Step	Hyp	Ref	Expression
1		fconst6g 6772	. 2 ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}):𝐴⟶𝐶)
2		constmap.3	. . 3 ⊢ 𝐶 ∈ V
3		constmap.1	. . 3 ⊢ 𝐴 ∈ V
4	2, 3	elmap 8903	. 2 ⊢ ((𝐴 × {𝐵}) ∈ (𝐶 ↑m 𝐴) ↔ (𝐴 × {𝐵}):𝐴⟶𝐶)
5	1, 4	sylibr 237	1 ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}) ∈ (𝐶 ↑m 𝐴))

This proof depends on syntax axioms:   → wi 4   ∈ wcel 2144  Vcvv 3450  {csn 4584   × cxp 5648  ⟶wf 6535  (class class class)co 7421   ↑_m cmap 8851

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732  ax-sep 5248  ax-pow 5326  ax-pr 5390  ax-un 7752

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-sbc 3739  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4585  df-pr 4587  df-op 4835  df-uni 4867  df-br 5103  df-opab 5167  df-mpt 5186  df-id 5545  df-xp 5656  df-rel 5657  df-cnv 5658  df-co 5659  df-dm 5660  df-rn 5661  df-iota 6494  df-fun 6541  df-fn 6542  df-f 6543  df-fv 6547  df-ov 7424  df-oprab 7425  df-mpo 7426  df-map 8853

This theorem is used by:  mzpclall  43832  mzpindd  43851