Theorem nfsup 9412

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 9405	. 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 5866	. . . . . 6 ⊢ Ⅎ𝑥◡𝑅
5		nfsup.1	. . . . . 6 ⊢ Ⅎ𝑥𝐴
6	4, 5	nfima 6072	. . . . 5 ⊢ Ⅎ𝑥(◡𝑅 “ 𝐴)
7	2, 6	nfdif 4085	. . . . . 6 ⊢ Ⅎ𝑥(𝐵 ∖ (◡𝑅 “ 𝐴))
8	3, 7	nfima 6072	. . . . 5 ⊢ Ⅎ𝑥(𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴)))
9	6, 8	nfun 4125	. . . 4 ⊢ Ⅎ𝑥((◡𝑅 “ 𝐴) ∪ (𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴))))
10	2, 9	nfdif 4085	. . 3 ⊢ Ⅎ𝑥(𝐵 ∖ ((◡𝑅 “ 𝐴) ∪ (𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴)))))
11	10	nfuni 4880	. 2 ⊢ Ⅎ𝑥∪ (𝐵 ∖ ((◡𝑅 “ 𝐴) ∪ (𝑅 “ (𝐵 ∖ (◡𝑅 “ 𝐴)))))
12	1, 11	nfcxfr 2923	1 ⊢ Ⅎ𝑥sup(𝐴, 𝐵, 𝑅)

Syntax hints:  Ⅎwnfc 2910   ∖ cdif 3903   ∪ cun 3904  ∪ cuni 4873  ^◡ccnv 5662   “ cima 5666  supcsup 9401

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-sep 5258  ax-pr 5406

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ral 3080  df-rex 3090  df-rab 3417  df-v 3457  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4288  df-if 4489  df-sn 4591  df-pr 4593  df-op 4597  df-uni 4874  df-br 5111  df-opab 5175  df-xp 5669  df-cnv 5671  df-dm 5673  df-rn 5674  df-res 5675  df-ima 5676  df-sup 9403

This theorem is referenced by:  nfinf  9444  itg2cnlem1  25901  esum2d  34461  nfwlim  36290  totbndbnd  38418  aomclem8  43768  binomcxplemdvbinom  45043  binomcxplemdvsum  45045  binomcxplemnotnn0  45046  ssfiunibd  46008  uzub  46125  limsupubuz  46407  fourierdlem20  46821  fourierdlem31  46832  fourierdlem79  46879  sge0ltfirp  47094  pimdecfgtioc  47409  decsmflem  47460  smfsup  47508  smfsupxr  47510  smflimsup  47522