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| Mirrors > Home > MPE Home > Th. List > nfinf | Structured version Visualization version GIF version | ||
| Description: Hypothesis builder for infimum. (Contributed by AV, 2-Sep-2020.) |
| Ref | Expression |
|---|---|
| nfinf.1 | ⊢ Ⅎ𝑥𝐴 |
| nfinf.2 | ⊢ Ⅎ𝑥𝐵 |
| nfinf.3 | ⊢ Ⅎ𝑥𝑅 |
| Ref | Expression |
|---|---|
| nfinf | ⊢ Ⅎ𝑥inf(𝐴, 𝐵, 𝑅) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-inf 9346 | . 2 ⊢ inf(𝐴, 𝐵, 𝑅) = sup(𝐴, 𝐵, ◡𝑅) | |
| 2 | nfinf.1 | . . 3 ⊢ Ⅎ𝑥𝐴 | |
| 3 | nfinf.2 | . . 3 ⊢ Ⅎ𝑥𝐵 | |
| 4 | nfinf.3 | . . . 4 ⊢ Ⅎ𝑥𝑅 | |
| 5 | 4 | nfcnv 5827 | . . 3 ⊢ Ⅎ𝑥◡𝑅 |
| 6 | 2, 3, 5 | nfsup 9354 | . 2 ⊢ Ⅎ𝑥sup(𝐴, 𝐵, ◡𝑅) |
| 7 | 1, 6 | nfcxfr 2896 | 1 ⊢ Ⅎ𝑥inf(𝐴, 𝐵, 𝑅) |
| Colors of variables: wff setvar class |
| Syntax hints: Ⅎwnfc 2883 ◡ccnv 5623 supcsup 9343 infcinf 9344 |
| 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 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pr 5377 |
| 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 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-xp 5630 df-cnv 5632 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-sup 9345 df-inf 9346 |
| This theorem is referenced by: iundisj 25505 iundisjf 32664 iundisjfi 32876 nfwsuc 36010 nfwlim 36014 allbutfiinf 45660 infrpgernmpt 45705 liminflelimsuplem 46015 stoweidlem62 46302 fourierdlem31 46378 iunhoiioolem 46915 smfinf 47058 prmdvdsfmtnof1lem1 47826 |
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