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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 11140 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | ltpnf 13065 | . 2 ⊢ (0 ∈ ℝ → 0 < +∞) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 0 < +∞ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 class class class wbr 5086 ℝcr 11031 0cc0 11032 +∞cpnf 11170 < clt 11173 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5232 ax-pow 5303 ax-pr 5371 ax-un 7683 ax-cnex 11088 ax-1cn 11090 ax-addrcl 11093 ax-rnegex 11103 ax-cnre 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-xp 5631 df-pnf 11175 df-xr 11177 df-ltxr 11178 |
| This theorem is referenced by: xmulgt0 13229 reltxrnmnf 13289 hashneq0 14320 hashge2el2dif 14436 sgnpnf 15049 pnfnei 23198 0bdop 32082 xlt2addrd 32850 xnn0gt0 32860 xrge0mulc1cn 34104 pnfneige0 34114 lmxrge0 34115 mbfposadd 38005 ftc1anclem5 38035 fourierdlem111 46666 fouriersw 46680 |
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