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Type | Label | Description |
---|---|---|
Statement | ||
Theorem | tsetndxnbasendx 17401 | The slot for the topology is not the slot for the base set in an extensible structure. (Contributed by AV, 21-Oct-2024.) (Proof shortened by AV, 31-Oct-2024.) |
⊢ (TopSet‘ndx) ≠ (Base‘ndx) | ||
Theorem | tsetndxnplusgndx 17402 | The slot for the topology is not the slot for the group operation in an extensible structure. Formerly part of proof for oppgtset 19384. (Contributed by AV, 18-Oct-2024.) |
⊢ (TopSet‘ndx) ≠ (+g‘ndx) | ||
Theorem | tsetndxnmulrndx 17403 | The slot for the topology is not the slot for the ring multiplication operation in an extensible structure. (Contributed by AV, 31-Oct-2024.) |
⊢ (TopSet‘ndx) ≠ (.r‘ndx) | ||
Theorem | tsetndxnstarvndx 17404 | The slot for the topology is not the slot for the involution in an extensible structure. Formerly part of proof for cnfldfunALT 21396. (Contributed by AV, 11-Nov-2024.) |
⊢ (TopSet‘ndx) ≠ (*𝑟‘ndx) | ||
Theorem | slotstnscsi 17405 | The slots Scalar, ·𝑠 and ·𝑖 are different from the slot TopSet. Formerly part of sralem 21192 and proofs using it. (Contributed by AV, 29-Oct-2024.) |
⊢ ((TopSet‘ndx) ≠ (Scalar‘ndx) ∧ (TopSet‘ndx) ≠ ( ·𝑠 ‘ndx) ∧ (TopSet‘ndx) ≠ (·𝑖‘ndx)) | ||
Theorem | topgrpstr 17406 | A constructed topological group is a structure. (Contributed by Mario Carneiro, 29-Aug-2015.) |
⊢ 𝑊 = {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(TopSet‘ndx), 𝐽〉} ⇒ ⊢ 𝑊 Struct 〈1, 9〉 | ||
Theorem | topgrpbas 17407 | The base set of a constructed topological group. (Contributed by Mario Carneiro, 29-Aug-2015.) |
⊢ 𝑊 = {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(TopSet‘ndx), 𝐽〉} ⇒ ⊢ (𝐵 ∈ 𝑋 → 𝐵 = (Base‘𝑊)) | ||
Theorem | topgrpplusg 17408 | The additive operation of a constructed topological group. (Contributed by Mario Carneiro, 29-Aug-2015.) |
⊢ 𝑊 = {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(TopSet‘ndx), 𝐽〉} ⇒ ⊢ ( + ∈ 𝑋 → + = (+g‘𝑊)) | ||
Theorem | topgrptset 17409 | The topology of a constructed topological group. (Contributed by Mario Carneiro, 29-Aug-2015.) |
⊢ 𝑊 = {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(TopSet‘ndx), 𝐽〉} ⇒ ⊢ (𝐽 ∈ 𝑋 → 𝐽 = (TopSet‘𝑊)) | ||
Theorem | resstset 17410 | TopSet is unaffected by restriction. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ 𝐻 = (𝐺 ↾s 𝐴) & ⊢ 𝐽 = (TopSet‘𝐺) ⇒ ⊢ (𝐴 ∈ 𝑉 → 𝐽 = (TopSet‘𝐻)) | ||
Theorem | plendx 17411 | Index value of the df-ple 17317 slot. (Contributed by Mario Carneiro, 14-Aug-2015.) (Revised by AV, 9-Sep-2021.) (New usage is discouraged.) |
⊢ (le‘ndx) = ;10 | ||
Theorem | pleid 17412 | Utility theorem: self-referencing, index-independent form of df-ple 17317. (Contributed by NM, 9-Nov-2012.) (Revised by AV, 9-Sep-2021.) |
⊢ le = Slot (le‘ndx) | ||
Theorem | plendxnn 17413 | The index value of the order slot is a positive integer. This property should be ensured for every concrete coding because otherwise it could not be used in an extensible structure (slots must be positive integers). (Contributed by AV, 30-Oct-2024.) |
⊢ (le‘ndx) ∈ ℕ | ||
Theorem | basendxltplendx 17414 | The index value of the Base slot is less than the index value of the le slot. (Contributed by AV, 30-Oct-2024.) |
⊢ (Base‘ndx) < (le‘ndx) | ||
Theorem | plendxnbasendx 17415 | The slot for the order is not the slot for the base set in an extensible structure. (Contributed by AV, 21-Oct-2024.) (Proof shortened by AV, 30-Oct-2024.) |
⊢ (le‘ndx) ≠ (Base‘ndx) | ||
Theorem | plendxnplusgndx 17416 | The slot for the "less than or equal to" ordering is not the slot for the group operation in an extensible structure. Formerly part of proof for oppgle 32935. (Contributed by AV, 18-Oct-2024.) |
⊢ (le‘ndx) ≠ (+g‘ndx) | ||
Theorem | plendxnmulrndx 17417 | The slot for the "less than or equal to" ordering is not the slot for the ring multiplication operation in an extensible structure. Formerly part of proof for opsrmulr 22090. (Contributed by AV, 1-Nov-2024.) |
⊢ (le‘ndx) ≠ (.r‘ndx) | ||
Theorem | plendxnscandx 17418 | The slot for the "less than or equal to" ordering is not the slot for the scalar in an extensible structure. Formerly part of proof for opsrsca 22094. (Contributed by AV, 1-Nov-2024.) |
⊢ (le‘ndx) ≠ (Scalar‘ndx) | ||
Theorem | plendxnvscandx 17419 | The slot for the "less than or equal to" ordering is not the slot for the scalar product in an extensible structure. Formerly part of proof for opsrvsca 22092. (Contributed by AV, 1-Nov-2024.) |
⊢ (le‘ndx) ≠ ( ·𝑠 ‘ndx) | ||
Theorem | slotsdifplendx 17420 | The index of the slot for the distance is not the index of other slots. Formerly part of proof for cnfldfunALT 21396. (Contributed by AV, 11-Nov-2024.) |
⊢ ((*𝑟‘ndx) ≠ (le‘ndx) ∧ (TopSet‘ndx) ≠ (le‘ndx)) | ||
Theorem | otpsstr 17421 | Functionality of a topological ordered space. (Contributed by Mario Carneiro, 12-Nov-2015.) (Revised by AV, 9-Sep-2021.) |
⊢ 𝐾 = {〈(Base‘ndx), 𝐵〉, 〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉} ⇒ ⊢ 𝐾 Struct 〈1, ;10〉 | ||
Theorem | otpsbas 17422 | The base set of a topological ordered space. (Contributed by Mario Carneiro, 12-Nov-2015.) (Revised by AV, 9-Sep-2021.) |
⊢ 𝐾 = {〈(Base‘ndx), 𝐵〉, 〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉} ⇒ ⊢ (𝐵 ∈ 𝑉 → 𝐵 = (Base‘𝐾)) | ||
Theorem | otpstset 17423 | The open sets of a topological ordered space. (Contributed by Mario Carneiro, 12-Nov-2015.) (Revised by AV, 9-Sep-2021.) |
⊢ 𝐾 = {〈(Base‘ndx), 𝐵〉, 〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉} ⇒ ⊢ (𝐽 ∈ 𝑉 → 𝐽 = (TopSet‘𝐾)) | ||
Theorem | otpsle 17424 | The order of a topological ordered space. (Contributed by Mario Carneiro, 12-Nov-2015.) (Revised by AV, 9-Sep-2021.) |
⊢ 𝐾 = {〈(Base‘ndx), 𝐵〉, 〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉} ⇒ ⊢ ( ≤ ∈ 𝑉 → ≤ = (le‘𝐾)) | ||
Theorem | ressle 17425 | le is unaffected by restriction. (Contributed by Mario Carneiro, 3-Nov-2015.) |
⊢ 𝑊 = (𝐾 ↾s 𝐴) & ⊢ ≤ = (le‘𝐾) ⇒ ⊢ (𝐴 ∈ 𝑉 → ≤ = (le‘𝑊)) | ||
Theorem | ocndx 17426 | Index value of the df-ocomp 17318 slot. (Contributed by Mario Carneiro, 25-Oct-2015.) (New usage is discouraged.) |
⊢ (oc‘ndx) = ;11 | ||
Theorem | ocid 17427 | Utility theorem: index-independent form of df-ocomp 17318. (Contributed by Mario Carneiro, 25-Oct-2015.) |
⊢ oc = Slot (oc‘ndx) | ||
Theorem | basendxnocndx 17428 | The slot for the orthocomplementation is not the slot for the base set in an extensible structure. Formerly part of proof for thlbas 21731. (Contributed by AV, 11-Nov-2024.) |
⊢ (Base‘ndx) ≠ (oc‘ndx) | ||
Theorem | plendxnocndx 17429 | The slot for the orthocomplementation is not the slot for the order in an extensible structure. Formerly part of proof for thlle 21733. (Contributed by AV, 11-Nov-2024.) |
⊢ (le‘ndx) ≠ (oc‘ndx) | ||
Theorem | dsndx 17430 | Index value of the df-ds 17319 slot. (Contributed by Mario Carneiro, 14-Aug-2015.) (New usage is discouraged.) |
⊢ (dist‘ndx) = ;12 | ||
Theorem | dsid 17431 | Utility theorem: index-independent form of df-ds 17319. (Contributed by Mario Carneiro, 23-Dec-2013.) |
⊢ dist = Slot (dist‘ndx) | ||
Theorem | dsndxnn 17432 | The index of the slot for the distance in an extensible structure is a positive integer. Formerly part of proof for tmslem 24509. (Contributed by AV, 28-Oct-2024.) |
⊢ (dist‘ndx) ∈ ℕ | ||
Theorem | basendxltdsndx 17433 | The index of the slot for the base set is less then the index of the slot for the distance in an extensible structure. Formerly part of proof for tmslem 24509. (Contributed by AV, 28-Oct-2024.) |
⊢ (Base‘ndx) < (dist‘ndx) | ||
Theorem | dsndxnbasendx 17434 | The slot for the distance is not the slot for the base set in an extensible structure. (Contributed by AV, 21-Oct-2024.) (Proof shortened by AV, 28-Oct-2024.) |
⊢ (dist‘ndx) ≠ (Base‘ndx) | ||
Theorem | dsndxnplusgndx 17435 | The slot for the distance function is not the slot for the group operation in an extensible structure. Formerly part of proof for mgpds 20164. (Contributed by AV, 18-Oct-2024.) |
⊢ (dist‘ndx) ≠ (+g‘ndx) | ||
Theorem | dsndxnmulrndx 17436 | The slot for the distance function is not the slot for the ring multiplication operation in an extensible structure. (Contributed by AV, 31-Oct-2024.) |
⊢ (dist‘ndx) ≠ (.r‘ndx) | ||
Theorem | slotsdnscsi 17437 | The slots Scalar, ·𝑠 and ·𝑖 are different from the slot dist. Formerly part of sralem 21192 and proofs using it. (Contributed by AV, 29-Oct-2024.) |
⊢ ((dist‘ndx) ≠ (Scalar‘ndx) ∧ (dist‘ndx) ≠ ( ·𝑠 ‘ndx) ∧ (dist‘ndx) ≠ (·𝑖‘ndx)) | ||
Theorem | dsndxntsetndx 17438 | The slot for the distance function is not the slot for the topology in an extensible structure. Formerly part of proof for tngds 24683. (Contributed by AV, 29-Oct-2024.) |
⊢ (dist‘ndx) ≠ (TopSet‘ndx) | ||
Theorem | slotsdifdsndx 17439 | The index of the slot for the distance is not the index of other slots. Formerly part of proof for cnfldfunALT 21396. (Contributed by AV, 11-Nov-2024.) |
⊢ ((*𝑟‘ndx) ≠ (dist‘ndx) ∧ (le‘ndx) ≠ (dist‘ndx)) | ||
Theorem | unifndx 17440 | Index value of the df-unif 17320 slot. (Contributed by Thierry Arnoux, 17-Dec-2017.) (New usage is discouraged.) |
⊢ (UnifSet‘ndx) = ;13 | ||
Theorem | unifid 17441 | Utility theorem: index-independent form of df-unif 17320. (Contributed by Thierry Arnoux, 17-Dec-2017.) |
⊢ UnifSet = Slot (UnifSet‘ndx) | ||
Theorem | unifndxnn 17442 | The index of the slot for the uniform set in an extensible structure is a positive integer. Formerly part of proof for tuslem 24290. (Contributed by AV, 28-Oct-2024.) |
⊢ (UnifSet‘ndx) ∈ ℕ | ||
Theorem | basendxltunifndx 17443 | The index of the slot for the base set is less then the index of the slot for the uniform set in an extensible structure. Formerly part of proof for tuslem 24290. (Contributed by AV, 28-Oct-2024.) |
⊢ (Base‘ndx) < (UnifSet‘ndx) | ||
Theorem | unifndxnbasendx 17444 | The slot for the uniform set is not the slot for the base set in an extensible structure. (Contributed by AV, 21-Oct-2024.) |
⊢ (UnifSet‘ndx) ≠ (Base‘ndx) | ||
Theorem | unifndxntsetndx 17445 | The slot for the uniform set is not the slot for the topology in an extensible structure. Formerly part of proof for tuslem 24290. (Contributed by AV, 28-Oct-2024.) |
⊢ (UnifSet‘ndx) ≠ (TopSet‘ndx) | ||
Theorem | slotsdifunifndx 17446 | The index of the slot for the uniform set is not the index of other slots. Formerly part of proof for cnfldfunALT 21396. (Contributed by AV, 10-Nov-2024.) |
⊢ (((+g‘ndx) ≠ (UnifSet‘ndx) ∧ (.r‘ndx) ≠ (UnifSet‘ndx) ∧ (*𝑟‘ndx) ≠ (UnifSet‘ndx)) ∧ ((le‘ndx) ≠ (UnifSet‘ndx) ∧ (dist‘ndx) ≠ (UnifSet‘ndx))) | ||
Theorem | ressunif 17447 | UnifSet is unaffected by restriction. (Contributed by Thierry Arnoux, 7-Dec-2017.) |
⊢ 𝐻 = (𝐺 ↾s 𝐴) & ⊢ 𝑈 = (UnifSet‘𝐺) ⇒ ⊢ (𝐴 ∈ 𝑉 → 𝑈 = (UnifSet‘𝐻)) | ||
Theorem | odrngstr 17448 | Functionality of an ordered metric ring. (Contributed by Mario Carneiro, 20-Aug-2015.) (Proof shortened by AV, 15-Sep-2021.) |
⊢ 𝑊 = ({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), · 〉} ∪ {〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ 𝑊 Struct 〈1, ;12〉 | ||
Theorem | odrngbas 17449 | The base set of an ordered metric ring. (Contributed by Mario Carneiro, 20-Aug-2015.) |
⊢ 𝑊 = ({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), · 〉} ∪ {〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ (𝐵 ∈ 𝑉 → 𝐵 = (Base‘𝑊)) | ||
Theorem | odrngplusg 17450 | The addition operation of an ordered metric ring. (Contributed by Mario Carneiro, 20-Aug-2015.) |
⊢ 𝑊 = ({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), · 〉} ∪ {〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ ( + ∈ 𝑉 → + = (+g‘𝑊)) | ||
Theorem | odrngmulr 17451 | The multiplication operation of an ordered metric ring. (Contributed by Mario Carneiro, 20-Aug-2015.) |
⊢ 𝑊 = ({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), · 〉} ∪ {〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ ( · ∈ 𝑉 → · = (.r‘𝑊)) | ||
Theorem | odrngtset 17452 | The open sets of an ordered metric ring. (Contributed by Mario Carneiro, 20-Aug-2015.) |
⊢ 𝑊 = ({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), · 〉} ∪ {〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ (𝐽 ∈ 𝑉 → 𝐽 = (TopSet‘𝑊)) | ||
Theorem | odrngle 17453 | The order of an ordered metric ring. (Contributed by Mario Carneiro, 20-Aug-2015.) |
⊢ 𝑊 = ({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), · 〉} ∪ {〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ ( ≤ ∈ 𝑉 → ≤ = (le‘𝑊)) | ||
Theorem | odrngds 17454 | The metric of an ordered metric ring. (Contributed by Mario Carneiro, 20-Aug-2015.) |
⊢ 𝑊 = ({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), · 〉} ∪ {〈(TopSet‘ndx), 𝐽〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ (𝐷 ∈ 𝑉 → 𝐷 = (dist‘𝑊)) | ||
Theorem | ressds 17455 | dist is unaffected by restriction. (Contributed by Mario Carneiro, 26-Aug-2015.) |
⊢ 𝐻 = (𝐺 ↾s 𝐴) & ⊢ 𝐷 = (dist‘𝐺) ⇒ ⊢ (𝐴 ∈ 𝑉 → 𝐷 = (dist‘𝐻)) | ||
Theorem | homndx 17456 | Index value of the df-hom 17321 slot. (Contributed by Mario Carneiro, 7-Jan-2017.) (New usage is discouraged.) |
⊢ (Hom ‘ndx) = ;14 | ||
Theorem | homid 17457 | Utility theorem: index-independent form of df-hom 17321. (Contributed by Mario Carneiro, 7-Jan-2017.) |
⊢ Hom = Slot (Hom ‘ndx) | ||
Theorem | ccondx 17458 | Index value of the df-cco 17322 slot. (Contributed by Mario Carneiro, 7-Jan-2017.) (New usage is discouraged.) |
⊢ (comp‘ndx) = ;15 | ||
Theorem | ccoid 17459 | Utility theorem: index-independent form of df-cco 17322. (Contributed by Mario Carneiro, 7-Jan-2017.) |
⊢ comp = Slot (comp‘ndx) | ||
Theorem | slotsbhcdif 17460 | The slots Base, Hom and comp are different. (Contributed by AV, 5-Mar-2020.) (Proof shortened by AV, 28-Oct-2024.) |
⊢ ((Base‘ndx) ≠ (Hom ‘ndx) ∧ (Base‘ndx) ≠ (comp‘ndx) ∧ (Hom ‘ndx) ≠ (comp‘ndx)) | ||
Theorem | slotsbhcdifOLD 17461 | Obsolete version of slotsbhcdif 17460 as of 28-Oct-2024. The slots Base, Hom and comp are different. (Contributed by AV, 5-Mar-2020.) (Proof modification is discouraged.) (New usage is discouraged.) |
⊢ ((Base‘ndx) ≠ (Hom ‘ndx) ∧ (Base‘ndx) ≠ (comp‘ndx) ∧ (Hom ‘ndx) ≠ (comp‘ndx)) | ||
Theorem | slotsdifplendx2 17462 | The index of the slot for the "less than or equal to" ordering is not the index of other slots. Formerly part of proof for prstcleval 48868. (Contributed by AV, 12-Nov-2024.) |
⊢ ((le‘ndx) ≠ (comp‘ndx) ∧ (le‘ndx) ≠ (Hom ‘ndx)) | ||
Theorem | slotsdifocndx 17463 | The index of the slot for the orthocomplementation is not the index of other slots. Formerly part of proof for prstcocval 48871. (Contributed by AV, 12-Nov-2024.) |
⊢ ((oc‘ndx) ≠ (comp‘ndx) ∧ (oc‘ndx) ≠ (Hom ‘ndx)) | ||
Theorem | resshom 17464 | Hom is unaffected by restriction. (Contributed by Mario Carneiro, 5-Jan-2017.) |
⊢ 𝐷 = (𝐶 ↾s 𝐴) & ⊢ 𝐻 = (Hom ‘𝐶) ⇒ ⊢ (𝐴 ∈ 𝑉 → 𝐻 = (Hom ‘𝐷)) | ||
Theorem | ressco 17465 | comp is unaffected by restriction. (Contributed by Mario Carneiro, 5-Jan-2017.) |
⊢ 𝐷 = (𝐶 ↾s 𝐴) & ⊢ · = (comp‘𝐶) ⇒ ⊢ (𝐴 ∈ 𝑉 → · = (comp‘𝐷)) | ||
Syntax | crest 17466 | Extend class notation with the function returning a subspace topology. |
class ↾t | ||
Syntax | ctopn 17467 | Extend class notation with the topology extractor function. |
class TopOpen | ||
Definition | df-rest 17468* | Function returning the subspace topology induced by the topology 𝑦 and the set 𝑥. (Contributed by FL, 20-Sep-2010.) (Revised by Mario Carneiro, 1-May-2015.) |
⊢ ↾t = (𝑗 ∈ V, 𝑥 ∈ V ↦ ran (𝑦 ∈ 𝑗 ↦ (𝑦 ∩ 𝑥))) | ||
Definition | df-topn 17469 | Define the topology extractor function. This differs from df-tset 17316 when a structure has been restricted using df-ress 17274; in this case the TopSet component will still have a topology over the larger set, and this function fixes this by restricting the topology as well. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ TopOpen = (𝑤 ∈ V ↦ ((TopSet‘𝑤) ↾t (Base‘𝑤))) | ||
Theorem | restfn 17470 | The subspace topology operator is a function on pairs. (Contributed by Mario Carneiro, 1-May-2015.) |
⊢ ↾t Fn (V × V) | ||
Theorem | topnfn 17471 | The topology extractor function is a function on the universe. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ TopOpen Fn V | ||
Theorem | restval 17472* | The subspace topology induced by the topology 𝐽 on the set 𝐴. (Contributed by FL, 20-Sep-2010.) (Revised by Mario Carneiro, 1-May-2015.) |
⊢ ((𝐽 ∈ 𝑉 ∧ 𝐴 ∈ 𝑊) → (𝐽 ↾t 𝐴) = ran (𝑥 ∈ 𝐽 ↦ (𝑥 ∩ 𝐴))) | ||
Theorem | elrest 17473* | The predicate "is an open set of a subspace topology". (Contributed by FL, 5-Jan-2009.) (Revised by Mario Carneiro, 15-Dec-2013.) |
⊢ ((𝐽 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐴 ∈ (𝐽 ↾t 𝐵) ↔ ∃𝑥 ∈ 𝐽 𝐴 = (𝑥 ∩ 𝐵))) | ||
Theorem | elrestr 17474 | Sufficient condition for being an open set in a subspace. (Contributed by Jeff Hankins, 11-Jul-2009.) (Revised by Mario Carneiro, 15-Dec-2013.) |
⊢ ((𝐽 ∈ 𝑉 ∧ 𝑆 ∈ 𝑊 ∧ 𝐴 ∈ 𝐽) → (𝐴 ∩ 𝑆) ∈ (𝐽 ↾t 𝑆)) | ||
Theorem | 0rest 17475 | Value of the structure restriction when the topology input is empty. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ (∅ ↾t 𝐴) = ∅ | ||
Theorem | restid2 17476 | The subspace topology over a subset of the base set is the original topology. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ ((𝐴 ∈ 𝑉 ∧ 𝐽 ⊆ 𝒫 𝐴) → (𝐽 ↾t 𝐴) = 𝐽) | ||
Theorem | restsspw 17477 | The subspace topology is a collection of subsets of the restriction set. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ (𝐽 ↾t 𝐴) ⊆ 𝒫 𝐴 | ||
Theorem | firest 17478 | The finite intersections operator commutes with restriction. (Contributed by Mario Carneiro, 30-Aug-2015.) |
⊢ (fi‘(𝐽 ↾t 𝐴)) = ((fi‘𝐽) ↾t 𝐴) | ||
Theorem | restid 17479 | The subspace topology of the base set is the original topology. (Contributed by Jeff Hankins, 9-Jul-2009.) (Revised by Mario Carneiro, 13-Aug-2015.) |
⊢ 𝑋 = ∪ 𝐽 ⇒ ⊢ (𝐽 ∈ 𝑉 → (𝐽 ↾t 𝑋) = 𝐽) | ||
Theorem | topnval 17480 | Value of the topology extractor function. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ 𝐵 = (Base‘𝑊) & ⊢ 𝐽 = (TopSet‘𝑊) ⇒ ⊢ (𝐽 ↾t 𝐵) = (TopOpen‘𝑊) | ||
Theorem | topnid 17481 | Value of the topology extractor function when the topology is defined over the same set as the base. (Contributed by Mario Carneiro, 13-Aug-2015.) |
⊢ 𝐵 = (Base‘𝑊) & ⊢ 𝐽 = (TopSet‘𝑊) ⇒ ⊢ (𝐽 ⊆ 𝒫 𝐵 → 𝐽 = (TopOpen‘𝑊)) | ||
Theorem | topnpropd 17482 | The topology extractor function depends only on the base and topology components. (Contributed by NM, 18-Jul-2006.) |
⊢ (𝜑 → (Base‘𝐾) = (Base‘𝐿)) & ⊢ (𝜑 → (TopSet‘𝐾) = (TopSet‘𝐿)) ⇒ ⊢ (𝜑 → (TopOpen‘𝐾) = (TopOpen‘𝐿)) | ||
Syntax | ctg 17483 | Extend class notation with a function that converts a basis to its corresponding topology. |
class topGen | ||
Syntax | cpt 17484 | Extend class notation with a function whose value is a product topology. |
class ∏t | ||
Syntax | c0g 17485 | Extend class notation with group identity element. |
class 0g | ||
Syntax | cgsu 17486 | Extend class notation to include finitely supported group sums. |
class Σg | ||
Definition | df-0g 17487* | Define group identity element. Remark: this definition is required here because the symbol 0g is already used in df-gsum 17488. The related theorems are provided later, see grpidval 18686. (Contributed by NM, 20-Aug-2011.) |
⊢ 0g = (𝑔 ∈ V ↦ (℩𝑒(𝑒 ∈ (Base‘𝑔) ∧ ∀𝑥 ∈ (Base‘𝑔)((𝑒(+g‘𝑔)𝑥) = 𝑥 ∧ (𝑥(+g‘𝑔)𝑒) = 𝑥)))) | ||
Definition | df-gsum 17488* |
Define a finite group sum (also called "iterated sum") of a
structure.
Given 𝐺 Σg 𝐹 where 𝐹:𝐴⟶(Base‘𝐺), the set of
indices is 𝐴 and the values are given by 𝐹 at each
index. A
group sum over a multiplicative group may be viewed as a product. The
definition is meaningful in different contexts, depending on the size of
the index set 𝐴 and each demanding different
properties of 𝐺.
1. If 𝐴 = ∅ and 𝐺 has an identity element, then the sum equals this identity. See gsum0 18709. 2. If 𝐴 = (𝑀...𝑁) and 𝐺 is any magma, then the sum is the sum of the elements, evaluated left-to-right, i.e., ((𝐹‘1) + (𝐹‘2)) + (𝐹‘3), etc. See gsumval2 18711 and gsumnunsn 34534. 3. If 𝐴 is a finite set (or is nonzero for finitely many indices) and 𝐺 is a commutative monoid, then the sum adds up these elements in some order, which is then uniquely defined. See gsumval3 19939. 4. If 𝐴 is an infinite set and 𝐺 is a Hausdorff topological group, then there is a meaningful sum, but Σg cannot handle this case. See df-tsms 24150. Remark: this definition is required here because the symbol Σg is already used in df-prds 17493 and df-imas 17554. The related theorems are provided later, see gsumvalx 18701. (Contributed by FL, 5-Sep-2010.) (Revised by FL, 17-Oct-2011.) (Revised by Mario Carneiro, 7-Dec-2014.) |
⊢ Σg = (𝑤 ∈ V, 𝑓 ∈ V ↦ ⦋{𝑥 ∈ (Base‘𝑤) ∣ ∀𝑦 ∈ (Base‘𝑤)((𝑥(+g‘𝑤)𝑦) = 𝑦 ∧ (𝑦(+g‘𝑤)𝑥) = 𝑦)} / 𝑜⦌if(ran 𝑓 ⊆ 𝑜, (0g‘𝑤), if(dom 𝑓 ∈ ran ..., (℩𝑥∃𝑚∃𝑛 ∈ (ℤ≥‘𝑚)(dom 𝑓 = (𝑚...𝑛) ∧ 𝑥 = (seq𝑚((+g‘𝑤), 𝑓)‘𝑛))), (℩𝑥∃𝑔[(◡𝑓 “ (V ∖ 𝑜)) / 𝑦](𝑔:(1...(♯‘𝑦))–1-1-onto→𝑦 ∧ 𝑥 = (seq1((+g‘𝑤), (𝑓 ∘ 𝑔))‘(♯‘𝑦))))))) | ||
Definition | df-topgen 17489* | Define a function that converts a basis to its corresponding topology. Equivalent to the definition of a topology generated by a basis in [Munkres] p. 78 (see tgval2 22978). The first use of this definition is tgval 22977 but the token is used in df-pt 17490. See tgval3 22985 for an alternate expression for the value. (Contributed by NM, 16-Jul-2006.) |
⊢ topGen = (𝑥 ∈ V ↦ {𝑦 ∣ 𝑦 ⊆ ∪ (𝑥 ∩ 𝒫 𝑦)}) | ||
Definition | df-pt 17490* | Define the product topology on a collection of topologies. For convenience, it is defined on arbitrary collections of sets, expressed as a function from some index set to the subbases of each factor space. (Contributed by Mario Carneiro, 3-Feb-2015.) |
⊢ ∏t = (𝑓 ∈ V ↦ (topGen‘{𝑥 ∣ ∃𝑔((𝑔 Fn dom 𝑓 ∧ ∀𝑦 ∈ dom 𝑓(𝑔‘𝑦) ∈ (𝑓‘𝑦) ∧ ∃𝑧 ∈ Fin ∀𝑦 ∈ (dom 𝑓 ∖ 𝑧)(𝑔‘𝑦) = ∪ (𝑓‘𝑦)) ∧ 𝑥 = X𝑦 ∈ dom 𝑓(𝑔‘𝑦))})) | ||
Syntax | cprds 17491 | The function constructing structure products. |
class Xs | ||
Syntax | cpws 17492 | The function constructing structure powers. |
class ↑s | ||
Definition | df-prds 17493* | Define a structure product. This can be a product of groups, rings, modules, or ordered topological fields; any unused components will have garbage in them but this is usually not relevant for the purpose of inheriting the structures present in the factors. (Contributed by Stefan O'Rear, 3-Jan-2015.) (Revised by Thierry Arnoux, 15-Jun-2019.) (Revised by Zhi Wang, 18-Aug-2024.) |
⊢ Xs = (𝑠 ∈ V, 𝑟 ∈ V ↦ ⦋X𝑥 ∈ dom 𝑟(Base‘(𝑟‘𝑥)) / 𝑣⦌⦋(𝑓 ∈ 𝑣, 𝑔 ∈ 𝑣 ↦ X𝑥 ∈ dom 𝑟((𝑓‘𝑥)(Hom ‘(𝑟‘𝑥))(𝑔‘𝑥))) / ℎ⦌(({〈(Base‘ndx), 𝑣〉, 〈(+g‘ndx), (𝑓 ∈ 𝑣, 𝑔 ∈ 𝑣 ↦ (𝑥 ∈ dom 𝑟 ↦ ((𝑓‘𝑥)(+g‘(𝑟‘𝑥))(𝑔‘𝑥))))〉, 〈(.r‘ndx), (𝑓 ∈ 𝑣, 𝑔 ∈ 𝑣 ↦ (𝑥 ∈ dom 𝑟 ↦ ((𝑓‘𝑥)(.r‘(𝑟‘𝑥))(𝑔‘𝑥))))〉} ∪ {〈(Scalar‘ndx), 𝑠〉, 〈( ·𝑠 ‘ndx), (𝑓 ∈ (Base‘𝑠), 𝑔 ∈ 𝑣 ↦ (𝑥 ∈ dom 𝑟 ↦ (𝑓( ·𝑠 ‘(𝑟‘𝑥))(𝑔‘𝑥))))〉, 〈(·𝑖‘ndx), (𝑓 ∈ 𝑣, 𝑔 ∈ 𝑣 ↦ (𝑠 Σg (𝑥 ∈ dom 𝑟 ↦ ((𝑓‘𝑥)(·𝑖‘(𝑟‘𝑥))(𝑔‘𝑥)))))〉}) ∪ ({〈(TopSet‘ndx), (∏t‘(TopOpen ∘ 𝑟))〉, 〈(le‘ndx), {〈𝑓, 𝑔〉 ∣ ({𝑓, 𝑔} ⊆ 𝑣 ∧ ∀𝑥 ∈ dom 𝑟(𝑓‘𝑥)(le‘(𝑟‘𝑥))(𝑔‘𝑥))}〉, 〈(dist‘ndx), (𝑓 ∈ 𝑣, 𝑔 ∈ 𝑣 ↦ sup((ran (𝑥 ∈ dom 𝑟 ↦ ((𝑓‘𝑥)(dist‘(𝑟‘𝑥))(𝑔‘𝑥))) ∪ {0}), ℝ*, < ))〉} ∪ {〈(Hom ‘ndx), ℎ〉, 〈(comp‘ndx), (𝑎 ∈ (𝑣 × 𝑣), 𝑐 ∈ 𝑣 ↦ (𝑑 ∈ ((2nd ‘𝑎)ℎ𝑐), 𝑒 ∈ (ℎ‘𝑎) ↦ (𝑥 ∈ dom 𝑟 ↦ ((𝑑‘𝑥)(〈((1st ‘𝑎)‘𝑥), ((2nd ‘𝑎)‘𝑥)〉(comp‘(𝑟‘𝑥))(𝑐‘𝑥))(𝑒‘𝑥)))))〉}))) | ||
Theorem | reldmprds 17494 | The structure product is a well-behaved binary operator. (Contributed by Stefan O'Rear, 7-Jan-2015.) (Revised by Thierry Arnoux, 15-Jun-2019.) (Revised by Zhi Wang, 18-Aug-2024.) |
⊢ Rel dom Xs | ||
Definition | df-pws 17495* | Define a structure power, which is just a structure product where all the factors are the same. (Contributed by Mario Carneiro, 11-Jan-2015.) |
⊢ ↑s = (𝑟 ∈ V, 𝑖 ∈ V ↦ ((Scalar‘𝑟)Xs(𝑖 × {𝑟}))) | ||
Theorem | prdsbasex 17496* | Lemma for structure products. (Contributed by Mario Carneiro, 3-Jan-2015.) |
⊢ 𝐵 = X𝑥 ∈ dom 𝑅(Base‘(𝑅‘𝑥)) ⇒ ⊢ 𝐵 ∈ V | ||
Theorem | imasvalstr 17497 | An image structure value is a structure. (Contributed by Stefan O'Rear, 3-Jan-2015.) (Revised by Mario Carneiro, 30-Apr-2015.) (Revised by Thierry Arnoux, 16-Jun-2019.) |
⊢ 𝑈 = (({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), × 〉} ∪ {〈(Scalar‘ndx), 𝑆〉, 〈( ·𝑠 ‘ndx), · 〉, 〈(·𝑖‘ndx), , 〉}) ∪ {〈(TopSet‘ndx), 𝑂〉, 〈(le‘ndx), 𝐿〉, 〈(dist‘ndx), 𝐷〉}) ⇒ ⊢ 𝑈 Struct 〈1, ;12〉 | ||
Theorem | prdsvalstr 17498 | Structure product value is a structure. (Contributed by Stefan O'Rear, 3-Jan-2015.) (Revised by Mario Carneiro, 30-Apr-2015.) (Revised by Thierry Arnoux, 16-Jun-2019.) |
⊢ (({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), × 〉} ∪ {〈(Scalar‘ndx), 𝑆〉, 〈( ·𝑠 ‘ndx), · 〉, 〈(·𝑖‘ndx), , 〉}) ∪ ({〈(TopSet‘ndx), 𝑂〉, 〈(le‘ndx), 𝐿〉, 〈(dist‘ndx), 𝐷〉} ∪ {〈(Hom ‘ndx), 𝐻〉, 〈(comp‘ndx), ∙ 〉})) Struct 〈1, ;15〉 | ||
Theorem | prdsbaslem 17499 | Lemma for prdsbas 17503 and similar theorems. (Contributed by Mario Carneiro, 7-Jan-2017.) (Revised by Thierry Arnoux, 16-Jun-2019.) (Revised by AV, 12-Jul-2024.) |
⊢ (𝜑 → 𝑈 = (({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), × 〉} ∪ {〈(Scalar‘ndx), 𝑆〉, 〈( ·𝑠 ‘ndx), · 〉, 〈(·𝑖‘ndx), , 〉}) ∪ ({〈(TopSet‘ndx), 𝑂〉, 〈(le‘ndx), 𝐿〉, 〈(dist‘ndx), 𝐷〉} ∪ {〈(Hom ‘ndx), 𝐻〉, 〈(comp‘ndx), ∙ 〉}))) & ⊢ 𝐴 = (𝐸‘𝑈) & ⊢ 𝐸 = Slot (𝐸‘ndx) & ⊢ (𝜑 → 𝑇 ∈ 𝑉) & ⊢ {〈(𝐸‘ndx), 𝑇〉} ⊆ (({〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), + 〉, 〈(.r‘ndx), × 〉} ∪ {〈(Scalar‘ndx), 𝑆〉, 〈( ·𝑠 ‘ndx), · 〉, 〈(·𝑖‘ndx), , 〉}) ∪ ({〈(TopSet‘ndx), 𝑂〉, 〈(le‘ndx), 𝐿〉, 〈(dist‘ndx), 𝐷〉} ∪ {〈(Hom ‘ndx), 𝐻〉, 〈(comp‘ndx), ∙ 〉})) ⇒ ⊢ (𝜑 → 𝐴 = 𝑇) | ||
Theorem | prdsvallem 17500* | Lemma for prdsval 17501. (Contributed by Stefan O'Rear, 3-Jan-2015.) Extracted from the former proof of prdsval 17501, dependency on df-hom 17321 removed. (Revised by AV, 13-Oct-2024.) |
⊢ (𝑓 ∈ 𝑣, 𝑔 ∈ 𝑣 ↦ X𝑥 ∈ dom 𝑟((𝑓‘𝑥)(Hom ‘(𝑟‘𝑥))(𝑔‘𝑥))) ∈ V |
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