Theorem relfsupp 9060

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 9059	. 2 ⊢ finSupp = {⟨𝑟, 𝑧⟩ ∣ (Fun 𝑟 ∧ (𝑟 supp 𝑧) ∈ Fin)}
2	1	relopabiv 5719	1 ⊢ Rel finSupp

Syntax hints:   ∧ wa 395   ∈ wcel 2108  Rel wrel 5585  Fun wfun 6412  (class class class)co 7255   supp csupp 7948  Fincfn 8691   finSupp cfsupp 9058

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-ext 2709

This theorem depends on definitions:  df-bi 206  df-an 396  df-tru 1542  df-ex 1784  df-sb 2069  df-clab 2716  df-cleq 2730  df-clel 2817  df-v 3424  df-in 3890  df-ss 3900  df-opab 5133  df-xp 5586  df-rel 5587  df-fsupp 9059

This theorem is referenced by:  relprcnfsupp  9061  fsuppimp  9064  suppeqfsuppbi  9072  fsuppsssupp  9074  fsuppunbi  9079  funsnfsupp  9082  wemapso2  9242  gsumhashmul  31218