Theorem relfsupp 7212

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 7211	. 2 |- finSupp = { <. r , z >. | ( Fun r /\ ( r supp z ) e. Fin ) }
2	1	relopabiv 4859	1 |- Rel finSupp

Syntax hints:   /\ wa 104   e. wcel 2202   Rel wrel 4736   Fun wfun 5327  (class class class)co 6028   supp csupp 6413   Fincfn 6952   finSupp cfsupp 7210

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2213

This theorem depends on definitions:  df-bi 117  df-nf 1510  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-v 2805  df-in 3207  df-ss 3214  df-opab 4156  df-xp 4737  df-rel 4738  df-fsupp 7211

This theorem is referenced by:  relprcnfsupp  7213  fsuppimp  7217  suppeqfsuppbi  7220