Theorem nfsup 9335

Description: Hypothesis builder for supremum. (Contributed by Mario Carneiro, 20-Mar-2014.)

Hypotheses

Ref	Expression
nfsup.1	⊢ Ⅎ𝑥𝐴
nfsup.2	⊢ Ⅎ𝑥𝐵
nfsup.3	⊢ Ⅎ𝑥𝑅

Assertion

Ref	Expression
nfsup	⊢ Ⅎ𝑥sup(𝐴, 𝐵, 𝑅)

Proof of Theorem nfsup

Step	Hyp	Ref	Expression
1		dfsup2 9328	. 2 ⊢ sup(𝐴, 𝐵, 𝑅) = ∪ (𝐵 ∖ ((◡𝑅 “ 𝐴) ∪ (𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴)))))
2		nfsup.2	. . . 4 ⊢ Ⅎ𝑥𝐵
3		nfsup.3	. . . . . . 7 ⊢ Ⅎ𝑥𝑅
4	3	nfcnv 5818	. . . . . 6 ⊢ Ⅎ𝑥◡𝑅
5		nfsup.1	. . . . . 6 ⊢ Ⅎ𝑥𝐴
6	4, 5	nfima 6017	. . . . 5 ⊢ Ⅎ𝑥(◡𝑅 “ 𝐴)
7	2, 6	nfdif 4079	. . . . . 6 ⊢ Ⅎ𝑥(𝐵 ∖ (◡𝑅 “ 𝐴))
8	3, 7	nfima 6017	. . . . 5 ⊢ Ⅎ𝑥(𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴)))
9	6, 8	nfun 4120	. . . 4 ⊢ Ⅎ𝑥((◡𝑅 “ 𝐴) ∪ (𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴))))
10	2, 9	nfdif 4079	. . 3 ⊢ Ⅎ𝑥(𝐵 ∖ ((◡𝑅 “ 𝐴) ∪ (𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴)))))
11	10	nfuni 4866	. 2 ⊢ Ⅎ𝑥∪ (𝐵 ∖ ((◡𝑅 “ 𝐴) ∪ (𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴)))))
12	1, 11	nfcxfr 2892	1 ⊢ Ⅎ𝑥sup(𝐴, 𝐵, 𝑅)

Syntax hints:  Ⅎwnfc 2879   ∖ cdif 3899   ∪ cun 3900  ∪ cuni 4859  ^◡ccnv 5615   “ cima 5619  supcsup 9324

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-10 2144  ax-11 2160  ax-12 2180  ax-ext 2703  ax-sep 5234  ax-nul 5244  ax-pr 5370

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-clab 2710  df-cleq 2723  df-clel 2806  df-nfc 2881  df-ral 3048  df-rex 3057  df-rab 3396  df-v 3438  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4284  df-if 4476  df-sn 4577  df-pr 4579  df-op 4583  df-uni 4860  df-br 5092  df-opab 5154  df-xp 5622  df-cnv 5624  df-dm 5626  df-rn 5627  df-res 5628  df-ima 5629  df-sup 9326

This theorem is referenced by:  nfinf  9367  itg2cnlem1  25687  esum2d  34101  nfwlim  35855  totbndbnd  37828  aomclem8  43093  binomcxplemdvbinom  44385  binomcxplemdvsum  44387  binomcxplemnotnn0  44388  ssfiunibd  45349  uzub  45468  limsupubuz  45750  fourierdlem20  46164  fourierdlem31  46175  fourierdlem79  46222  sge0ltfirp  46437  pimdecfgtioc  46752  decsmflem  46803  smfsup  46851  smfsupxr  46853  smflimsup  46865