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| Mirrors > Home > HSE Home > Th. List > ifhvhv0 | Structured version Visualization version GIF version | ||
| Description: Prove if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ. (Contributed by David A. Wheeler, 7-Dec-2018.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ifhvhv0 | ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-hv0cl 31099 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4531 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2119 ifcif 4461 ℋchba 31015 0ℎc0v 31020 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2712 ax-hv0cl 31099 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-ex 1787 df-sb 2074 df-clab 2719 df-cleq 2732 df-clel 2815 df-if 4462 |
| This theorem is referenced by: hvsubsub4 31156 hvnegdi 31163 hvsubeq0 31164 hvaddcan 31166 hvsubadd 31173 normlem9at 31217 normsq 31230 normsub0 31232 norm-ii 31234 norm-iii 31236 normsub 31239 normpyth 31241 norm3dif 31246 norm3lemt 31248 norm3adifi 31249 normpar 31251 polid 31255 bcs 31277 pjoc1 31530 pjoc2 31535 h1de2ci 31652 spansn 31655 elspansn 31662 elspansn2 31663 h1datom 31678 spansnj 31743 spansncv 31749 pjch1 31766 pjadji 31781 pjaddi 31782 pjinormi 31783 pjsubi 31784 pjmuli 31785 pjcjt2 31788 pjch 31790 pjopyth 31816 pjnorm 31820 pjpyth 31821 pjnel 31822 eigre 31931 eigorth 31934 lnopeq0lem2 32102 lnopunii 32108 lnophmi 32114 pjss2coi 32260 pjssmi 32261 pjssge0i 32262 pjdifnormi 32263 |
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