Theorem relfsupp 9314

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 9313	. 2 ⊢ finSupp = {⟨𝑟, 𝑧⟩ ∣ (Fun 𝑟 ∧ (𝑟 supp 𝑧) ∈ Fin)}
2	1	relopabiv 5783	1 ⊢ Rel finSupp

Syntax hints:   ∧ wa 395   ∈ wcel 2109  Rel wrel 5643  Fun wfun 6505  (class class class)co 7387   supp csupp 8139  Fincfn 8918   finSupp cfsupp 9312

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-ext 2701

This theorem depends on definitions:  df-bi 207  df-an 396  df-tru 1543  df-ex 1780  df-sb 2066  df-clab 2708  df-cleq 2721  df-clel 2803  df-v 3449  df-ss 3931  df-opab 5170  df-xp 5644  df-rel 5645  df-fsupp 9313

This theorem is referenced by:  relprcnfsupp  9315  fsuppimp  9319  suppeqfsuppbi  9330  fsuppsssupp  9332  fsuppss  9334  fsuppssov1  9335  fsuppunbi  9340  funsnfsupp  9343  wemapso2  9506  gsumhashmul  33001