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| Mirrors > Home > MPE Home > Th. List > 0ltpnf | Structured version Visualization version GIF version | ||
| Description: Zero is less than plus infinity. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 0ltpnf | ⊢ 0 < +∞ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re 11134 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | ltpnf 13034 | . 2 ⊢ (0 ∈ ℝ → 0 < +∞) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 0 < +∞ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2113 class class class wbr 5098 ℝcr 11025 0cc0 11026 +∞cpnf 11163 < clt 11166 |
| 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-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11082 ax-1cn 11084 ax-addrcl 11087 ax-rnegex 11097 ax-cnre 11099 |
| 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-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-xp 5630 df-pnf 11168 df-xr 11170 df-ltxr 11171 |
| This theorem is referenced by: xmulgt0 13198 reltxrnmnf 13258 hashneq0 14287 hashge2el2dif 14403 sgnpnf 15016 pnfnei 23164 0bdop 32068 xlt2addrd 32839 xnn0gt0 32849 xrge0mulc1cn 34098 pnfneige0 34108 lmxrge0 34109 mbfposadd 37868 ftc1anclem5 37898 fourierdlem111 46461 fouriersw 46475 |
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