Theorem relfsupp 9393

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 9392	. 2 ⊢ finSupp = {⟨𝑟, 𝑧⟩ ∣ (Fun 𝑟 ∧ (𝑟 supp 𝑧) ∈ Fin)}
2	1	relopabi 5809	1 ⊢ Rel finSupp

This proof depends on syntax axioms:   ∧ wa 401   ∈ wcel 2147  Rel wrel 5663  Fun wfun 6560  (class class class)co 7451   supp csupp 8214  Fincfn 9011   finSupp cfsupp 9391

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-ext 2735

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2102  df-clab 2742  df-cleq 2755  df-clel 2839  df-rab 3417  df-v 3456  df-ss 3901  df-dif 4050  df-un 4154  df-nul 4282  df-if 4486  df-sn 4589  df-pr 4591  df-op 4841  df-opab 5174  df-xp 5664  df-rel 5665  df-fsupp 9392

This theorem is used by:  relprcnfsupp  9394  fsuppimp  9398  suppeqfsuppbi  9408  fsuppsssupp  9410  fsuppss  9412  fsuppssov1  9413  fsuppunbi  9418  funsnfsupp  9421  wemapso2  9584  gsumhashmul  33727