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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 31090 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4551 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 ifcif 4481 ℋchba 31006 0ℎc0v 31011 |
| 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 31090 |
| 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 4482 |
| This theorem is referenced by: hvsubsub4 31147 hvnegdi 31154 hvsubeq0 31155 hvaddcan 31157 hvsubadd 31164 normlem9at 31208 normsq 31221 normsub0 31223 norm-ii 31225 norm-iii 31227 normsub 31230 normpyth 31232 norm3dif 31237 norm3lemt 31239 norm3adifi 31240 normpar 31242 polid 31246 bcs 31268 pjoc1 31521 pjoc2 31526 h1de2ci 31643 spansn 31646 elspansn 31653 elspansn2 31654 h1datom 31669 spansnj 31734 spansncv 31740 pjch1 31757 pjadji 31772 pjaddi 31773 pjinormi 31774 pjsubi 31775 pjmuli 31776 pjcjt2 31779 pjch 31781 pjopyth 31807 pjnorm 31811 pjpyth 31812 pjnel 31813 eigre 31922 eigorth 31925 lnopeq0lem2 32093 lnopunii 32099 lnophmi 32105 pjss2coi 32251 pjssmi 32252 pjssge0i 32253 pjdifnormi 32254 |
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