Theorem relfsupp 9130

Description: The property of a function to be finitely supported is a relation. (Contributed by AV, 7-Jun-2019.)

Assertion

Ref	Expression
relfsupp	⊢ Rel finSupp

Proof of Theorem relfsupp

Dummy variables 𝑧 𝑟 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-fsupp 9129	. 2 ⊢ finSupp = {⟨𝑟, 𝑧⟩ ∣ (Fun 𝑟 ∧ (𝑟 supp 𝑧) ∈ Fin)}
2	1	relopabiv 5730	1 ⊢ Rel finSupp

Syntax hints:   ∧ wa 396   ∈ wcel 2106  Rel wrel 5594  Fun wfun 6427  (class class class)co 7275   supp csupp 7977  Fincfn 8733   finSupp cfsupp 9128

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-ext 2709

This theorem depends on definitions:  df-bi 206  df-an 397  df-tru 1542  df-ex 1783  df-sb 2068  df-clab 2716  df-cleq 2730  df-clel 2816  df-v 3434  df-in 3894  df-ss 3904  df-opab 5137  df-xp 5595  df-rel 5596  df-fsupp 9129

This theorem is referenced by:  relprcnfsupp  9131  fsuppimp  9134  suppeqfsuppbi  9142  fsuppsssupp  9144  fsuppunbi  9149  funsnfsupp  9152  wemapso2  9312  gsumhashmul  31316