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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 31094 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4537 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 ifcif 4467 ℋchba 31010 0ℎc0v 31015 |
| 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-hv0cl 31094 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-if 4468 |
| This theorem is referenced by: hvsubsub4 31151 hvnegdi 31158 hvsubeq0 31159 hvaddcan 31161 hvsubadd 31168 normlem9at 31212 normsq 31225 normsub0 31227 norm-ii 31229 norm-iii 31231 normsub 31234 normpyth 31236 norm3dif 31241 norm3lemt 31243 norm3adifi 31244 normpar 31246 polid 31250 bcs 31272 pjoc1 31525 pjoc2 31530 h1de2ci 31647 spansn 31650 elspansn 31657 elspansn2 31658 h1datom 31673 spansnj 31738 spansncv 31744 pjch1 31761 pjadji 31776 pjaddi 31777 pjinormi 31778 pjsubi 31779 pjmuli 31780 pjcjt2 31783 pjch 31785 pjopyth 31811 pjnorm 31815 pjpyth 31816 pjnel 31817 eigre 31926 eigorth 31929 lnopeq0lem2 32097 lnopunii 32103 lnophmi 32109 pjss2coi 32255 pjssmi 32256 pjssge0i 32257 pjdifnormi 32258 |
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